Home / 132,872,642.40-199,308,963.60-74,520,420.60

Finding the Fourth Proportional to 132,872,642.40, 199,308,963.60 and 74,520,420.60

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Solution

The fourth proportional to 132,872,642.40, 199,308,963.60 and 74,520,420.60 is: 111,780,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,872,642.40 : 199,308,963.60 = 74,520,420.60 : x
  2. Step 2: Convert to fraction form
    132,872,642.40/199,308,963.60 = 74,520,420.60/x
  3. Step 3: Cross multiply
    132,872,642.40x = 199,308,963.60 × 74,520,420.60
  4. Step 4: Simplify right side
    132,872,642.40x = 14,852,587,796,822,088
  5. Step 5: Solve for x
    x = 14,852,587,796,822,088/132,872,642.40
  6. Step 6: Final answer
    x = 111,780,630.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.