Home / 124,077,807.20-171,115,906.92-77,672,291.60

Finding the Fourth Proportional to 124,077,807.20, 171,115,906.92 and 77,672,291.60

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Solution

The fourth proportional to 124,077,807.20, 171,115,906.92 and 77,672,291.60 is: 107,117,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,077,807.20 : 171,115,906.92 = 77,672,291.60 : x
  2. Step 2: Convert to fraction form
    124,077,807.20/171,115,906.92 = 77,672,291.60/x
  3. Step 3: Cross multiply
    124,077,807.20x = 171,115,906.92 × 77,672,291.60
  4. Step 4: Simplify right side
    124,077,807.20x = 13,290,964,619,688,696
  5. Step 5: Solve for x
    x = 13,290,964,619,688,696/124,077,807.20
  6. Step 6: Final answer
    x = 107,117,984.43

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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.