Home / 51,538,018.95-71,123,938.18-31,422,177.87

Finding the Fourth Proportional to 51,538,018.95, 71,123,938.18 and 31,422,177.87

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Solution

The fourth proportional to 51,538,018.95, 71,123,938.18 and 31,422,177.87 is: 43,363,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,538,018.95 : 71,123,938.18 = 31,422,177.87 : x
  2. Step 2: Convert to fraction form
    51,538,018.95/71,123,938.18 = 31,422,177.87/x
  3. Step 3: Cross multiply
    51,538,018.95x = 71,123,938.18 × 31,422,177.87
  4. Step 4: Simplify right side
    51,538,018.95x = 2,234,869,035,961,573.75
  5. Step 5: Solve for x
    x = 2,234,869,035,961,573.75/51,538,018.95
  6. Step 6: Final answer
    x = 43,363,502.93

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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.