Home / 385,561,059.60-532,074,892.08-209,349,395.76

Finding the Fourth Proportional to 385,561,059.60, 532,074,892.08 and 209,349,395.76

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Solution

The fourth proportional to 385,561,059.60, 532,074,892.08 and 209,349,395.76 is: 288,902,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,561,059.60 : 532,074,892.08 = 209,349,395.76 : x
  2. Step 2: Convert to fraction form
    385,561,059.60/532,074,892.08 = 209,349,395.76/x
  3. Step 3: Cross multiply
    385,561,059.60x = 532,074,892.08 × 209,349,395.76
  4. Step 4: Simplify right side
    385,561,059.60x = 111,389,557,156,015,200
  5. Step 5: Solve for x
    x = 111,389,557,156,015,200/385,561,059.60
  6. Step 6: Final answer
    x = 288,902,508.13

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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.