Home / 137,652,043.50-189,963,735.89-74,932,186.32

Finding the Fourth Proportional to 137,652,043.50, 189,963,735.89 and 74,932,186.32

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Solution

The fourth proportional to 137,652,043.50, 189,963,735.89 and 74,932,186.32 is: 103,408,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,652,043.50 : 189,963,735.89 = 74,932,186.32 : x
  2. Step 2: Convert to fraction form
    137,652,043.50/189,963,735.89 = 74,932,186.32/x
  3. Step 3: Cross multiply
    137,652,043.50x = 189,963,735.89 × 74,932,186.32
  4. Step 4: Simplify right side
    137,652,043.50x = 14,234,398,051,752,748
  5. Step 5: Solve for x
    x = 14,234,398,051,752,748/137,652,043.50
  6. Step 6: Final answer
    x = 103,408,548.76

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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.