Home / 72,693,458.60-108,947,567.10-38,631,122.60

Finding the Fourth Proportional to 72,693,458.60, 108,947,567.10 and 38,631,122.60

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Solution

The fourth proportional to 72,693,458.60, 108,947,567.10 and 38,631,122.60 is: 57,897,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,693,458.60 : 108,947,567.10 = 38,631,122.60 : x
  2. Step 2: Convert to fraction form
    72,693,458.60/108,947,567.10 = 38,631,122.60/x
  3. Step 3: Cross multiply
    72,693,458.60x = 108,947,567.10 × 38,631,122.60
  4. Step 4: Simplify right side
    72,693,458.60x = 4,208,766,821,611,826.50
  5. Step 5: Solve for x
    x = 4,208,766,821,611,826.50/72,693,458.60
  6. Step 6: Final answer
    x = 57,897,462.89

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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.