Home / 1,472,540,011.29-2,032,103,801.39-812,490,321.69

Finding the Fourth Proportional to 1,472,540,011.29, 2,032,103,801.39 and 812,490,321.69

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Solution

The fourth proportional to 1,472,540,011.29, 2,032,103,801.39 and 812,490,321.69 is: 1,121,235,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472,540,011.29 : 2,032,103,801.39 = 812,490,321.69 : x
  2. Step 2: Convert to fraction form
    1,472,540,011.29/2,032,103,801.39 = 812,490,321.69/x
  3. Step 3: Cross multiply
    1,472,540,011.29x = 2,032,103,801.39 × 812,490,321.69
  4. Step 4: Simplify right side
    1,472,540,011.29x = 1,651,064,671,294,770,688
  5. Step 5: Solve for x
    x = 1,651,064,671,294,770,688/1,472,540,011.29
  6. Step 6: Final answer
    x = 1,121,235,863.63

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Half scale
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Double scale
Find fourth proportional to 1,472,540,012.29, 2,032,103,802.77 and 812,490,322.69
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.