Home / 131,518,870.95-181,496,394.90-72,785,586.27

Finding the Fourth Proportional to 131,518,870.95, 181,496,394.90 and 72,785,586.27

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Solution

The fourth proportional to 131,518,870.95, 181,496,394.90 and 72,785,586.27 is: 100,444,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,518,870.95 : 181,496,394.90 = 72,785,586.27 : x
  2. Step 2: Convert to fraction form
    131,518,870.95/181,496,394.90 = 72,785,586.27/x
  3. Step 3: Cross multiply
    131,518,870.95x = 181,496,394.90 × 72,785,586.27
  4. Step 4: Simplify right side
    131,518,870.95x = 13,210,321,508,687,938
  5. Step 5: Solve for x
    x = 13,210,321,508,687,938/131,518,870.95
  6. Step 6: Final answer
    x = 100,444,304.40

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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.