Home / 385,806,930.30-532,459,207.02-229,174,656.12

Finding the Fourth Proportional to 385,806,930.30, 532,459,207.02 and 229,174,656.12

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Solution

The fourth proportional to 385,806,930.30, 532,459,207.02 and 229,174,656.12 is: 316,288,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,806,930.30 : 532,459,207.02 = 229,174,656.12 : x
  2. Step 2: Convert to fraction form
    385,806,930.30/532,459,207.02 = 229,174,656.12/x
  3. Step 3: Cross multiply
    385,806,930.30x = 532,459,207.02 × 229,174,656.12
  4. Step 4: Simplify right side
    385,806,930.30x = 122,026,155,666,736,384
  5. Step 5: Solve for x
    x = 122,026,155,666,736,384/385,806,930.30
  6. Step 6: Final answer
    x = 316,288,138.14

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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.