Home / 391,608,008.20-586,774,283.10-288,295,877.80

Finding the Fourth Proportional to 391,608,008.20, 586,774,283.10 and 288,295,877.80

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Solution

The fourth proportional to 391,608,008.20, 586,774,283.10 and 288,295,877.80 is: 431,974,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,608,008.20 : 586,774,283.10 = 288,295,877.80 : x
  2. Step 2: Convert to fraction form
    391,608,008.20/586,774,283.10 = 288,295,877.80/x
  3. Step 3: Cross multiply
    391,608,008.20x = 586,774,283.10 × 288,295,877.80
  4. Step 4: Simplify right side
    391,608,008.20x = 169,164,607,016,780,224
  5. Step 5: Solve for x
    x = 169,164,607,016,780,224/391,608,008.20
  6. Step 6: Final answer
    x = 431,974,330.13

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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.