Home / 122,876,369.76-169,566,142.32-67,871,045.28

Finding the Fourth Proportional to 122,876,369.76, 169,566,142.32 and 67,871,045.28

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Solution

The fourth proportional to 122,876,369.76, 169,566,142.32 and 67,871,045.28 is: 93,660,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,876,369.76 : 169,566,142.32 = 67,871,045.28 : x
  2. Step 2: Convert to fraction form
    122,876,369.76/169,566,142.32 = 67,871,045.28/x
  3. Step 3: Cross multiply
    122,876,369.76x = 169,566,142.32 × 67,871,045.28
  4. Step 4: Simplify right side
    122,876,369.76x = 11,508,631,323,355,644
  5. Step 5: Solve for x
    x = 11,508,631,323,355,644/122,876,369.76
  6. Step 6: Final answer
    x = 93,660,248.47

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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.