Home / 72,426,972.60-108,640,458.90-38,414,748.60

Finding the Fourth Proportional to 72,426,972.60, 108,640,458.90 and 38,414,748.60

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Solution

The fourth proportional to 72,426,972.60, 108,640,458.90 and 38,414,748.60 is: 57,622,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426,972.60 : 108,640,458.90 = 38,414,748.60 : x
  2. Step 2: Convert to fraction form
    72,426,972.60/108,640,458.90 = 38,414,748.60/x
  3. Step 3: Cross multiply
    72,426,972.60x = 108,640,458.90 × 38,414,748.60
  4. Step 4: Simplify right side
    72,426,972.60x = 4,173,395,916,432,133
  5. Step 5: Solve for x
    x = 4,173,395,916,432,133/72,426,972.60
  6. Step 6: Final answer
    x = 57,622,122.90

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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.