Home / 1,472,540,007.79-2,032,103,796.56-812,490,318.19

Finding the Fourth Proportional to 1,472,540,007.79, 2,032,103,796.56 and 812,490,318.19

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Solution

The fourth proportional to 1,472,540,007.79, 2,032,103,796.56 and 812,490,318.19 is: 1,121,235,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472,540,007.79 : 2,032,103,796.56 = 812,490,318.19 : x
  2. Step 2: Convert to fraction form
    1,472,540,007.79/2,032,103,796.56 = 812,490,318.19/x
  3. Step 3: Cross multiply
    1,472,540,007.79x = 2,032,103,796.56 × 812,490,318.19
  4. Step 4: Simplify right side
    1,472,540,007.79x = 1,651,064,660,262,141,440
  5. Step 5: Solve for x
    x = 1,651,064,660,262,141,440/1,472,540,007.79
  6. Step 6: Final answer
    x = 1,121,235,858.81

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Double scale
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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.