Home / 1,429,046,810.72-2,143,332,461.77-432,830,985.66

Finding the Fourth Proportional to 1,429,046,810.72, 2,143,332,461.77 and 432,830,985.66

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Solution

The fourth proportional to 1,429,046,810.72, 2,143,332,461.77 and 432,830,985.66 is: 649,174,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,046,810.72 : 2,143,332,461.77 = 432,830,985.66 : x
  2. Step 2: Convert to fraction form
    1,429,046,810.72/2,143,332,461.77 = 432,830,985.66/x
  3. Step 3: Cross multiply
    1,429,046,810.72x = 2,143,332,461.77 × 432,830,985.66
  4. Step 4: Simplify right side
    1,429,046,810.72x = 927,700,702,023,901,312
  5. Step 5: Solve for x
    x = 927,700,702,023,901,312/1,429,046,810.72
  6. Step 6: Final answer
    x = 649,174,467.25

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.