Home / 122,787,102.48-169,445,162.16-67,781,778

Finding the Fourth Proportional to 122,787,102.48, 169,445,162.16 and 67,781,778

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Solution

The fourth proportional to 122,787,102.48, 169,445,162.16 and 67,781,778 is: 93,538,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,787,102.48 : 169,445,162.16 = 67,781,778 : x
  2. Step 2: Convert to fraction form
    122,787,102.48/169,445,162.16 = 67,781,778/x
  3. Step 3: Cross multiply
    122,787,102.48x = 169,445,162.16 × 67,781,778
  4. Step 4: Simplify right side
    122,787,102.48x = 11,485,294,364,703,120
  5. Step 5: Solve for x
    x = 11,485,294,364,703,120/122,787,102.48
  6. Step 6: Final answer
    x = 93,538,279.94

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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.