Home / 137,181,720.89-189,308,399.13-74,456,472.92

Finding the Fourth Proportional to 137,181,720.89, 189,308,399.13 and 74,456,472.92

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Solution

The fourth proportional to 137,181,720.89, 189,308,399.13 and 74,456,472.92 is: 102,748,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,181,720.89 : 189,308,399.13 = 74,456,472.92 : x
  2. Step 2: Convert to fraction form
    137,181,720.89/189,308,399.13 = 74,456,472.92/x
  3. Step 3: Cross multiply
    137,181,720.89x = 189,308,399.13 × 74,456,472.92
  4. Step 4: Simplify right side
    137,181,720.89x = 14,095,235,692,404,856
  5. Step 5: Solve for x
    x = 14,095,235,692,404,856/137,181,720.89
  6. Step 6: Final answer
    x = 102,748,643.19

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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.