Home / 91,047,130.91-125,644,951.80-49,231,096.32

Finding the Fourth Proportional to 91,047,130.91, 125,644,951.80 and 49,231,096.32

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Solution

The fourth proportional to 91,047,130.91, 125,644,951.80 and 49,231,096.32 is: 67,938,864.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,047,130.91 : 125,644,951.80 = 49,231,096.32 : x
  2. Step 2: Convert to fraction form
    91,047,130.91/125,644,951.80 = 49,231,096.32/x
  3. Step 3: Cross multiply
    91,047,130.91x = 125,644,951.80 × 49,231,096.32
  4. Step 4: Simplify right side
    91,047,130.91x = 6,185,638,724,187,557
  5. Step 5: Solve for x
    x = 6,185,638,724,187,557/91,047,130.91
  6. Step 6: Final answer
    x = 67,938,864.88

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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.