Home / 77,179,724.19-106,508,204.78-42,374,657.61

Finding the Fourth Proportional to 77,179,724.19, 106,508,204.78 and 42,374,657.61

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Solution

The fourth proportional to 77,179,724.19, 106,508,204.78 and 42,374,657.61 is: 58,477,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,179,724.19 : 106,508,204.78 = 42,374,657.61 : x
  2. Step 2: Convert to fraction form
    77,179,724.19/106,508,204.78 = 42,374,657.61/x
  3. Step 3: Cross multiply
    77,179,724.19x = 106,508,204.78 × 42,374,657.61
  4. Step 4: Simplify right side
    77,179,724.19x = 4,513,248,709,996,392
  5. Step 5: Solve for x
    x = 4,513,248,709,996,392/77,179,724.19
  6. Step 6: Final answer
    x = 58,477,129.29

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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.