Home / 131,069,778.19-180,875,923.13-72,332,023.32

Finding the Fourth Proportional to 131,069,778.19, 180,875,923.13 and 72,332,023.32

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Solution

The fourth proportional to 131,069,778.19, 180,875,923.13 and 72,332,023.32 is: 99,817,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,069,778.19 : 180,875,923.13 = 72,332,023.32 : x
  2. Step 2: Convert to fraction form
    131,069,778.19/180,875,923.13 = 72,332,023.32/x
  3. Step 3: Cross multiply
    131,069,778.19x = 180,875,923.13 × 72,332,023.32
  4. Step 4: Simplify right side
    131,069,778.19x = 13,083,121,490,046,516
  5. Step 5: Solve for x
    x = 13,083,121,490,046,516/131,069,778.19
  6. Step 6: Final answer
    x = 99,817,987.57

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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.