Home / 131,726,140.41-181,781,893.80-72,992,607.87

Finding the Fourth Proportional to 131,726,140.41, 181,781,893.80 and 72,992,607.87

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Solution

The fourth proportional to 131,726,140.41, 181,781,893.80 and 72,992,607.87 is: 100,729,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,726,140.41 : 181,781,893.80 = 72,992,607.87 : x
  2. Step 2: Convert to fraction form
    131,726,140.41/181,781,893.80 = 72,992,607.87/x
  3. Step 3: Cross multiply
    131,726,140.41x = 181,781,893.80 × 72,992,607.87
  4. Step 4: Simplify right side
    131,726,140.41x = 13,268,734,492,009,386
  5. Step 5: Solve for x
    x = 13,268,734,492,009,386/131,726,140.41
  6. Step 6: Final answer
    x = 100,729,699.14

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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.