Home / 478,605,742.31-660,474,597-266,912,772.41

Finding the Fourth Proportional to 478,605,742.31, 660,474,597 and 266,912,772.41

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Solution

The fourth proportional to 478,605,742.31, 660,474,597 and 266,912,772.41 is: 368,338,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,605,742.31 : 660,474,597 = 266,912,772.41 : x
  2. Step 2: Convert to fraction form
    478,605,742.31/660,474,597 = 266,912,772.41/x
  3. Step 3: Cross multiply
    478,605,742.31x = 660,474,597 × 266,912,772.41
  4. Step 4: Simplify right side
    478,605,742.31x = 176,289,105,791,647,456
  5. Step 5: Solve for x
    x = 176,289,105,791,647,456/478,605,742.31
  6. Step 6: Final answer
    x = 368,338,885.66

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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.