Home / 75,287,618.40-112,931,427.60-67,067,997.60

Finding the Fourth Proportional to 75,287,618.40, 112,931,427.60 and 67,067,997.60

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Solution

The fourth proportional to 75,287,618.40, 112,931,427.60 and 67,067,997.60 is: 100,601,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,287,618.40 : 112,931,427.60 = 67,067,997.60 : x
  2. Step 2: Convert to fraction form
    75,287,618.40/112,931,427.60 = 67,067,997.60/x
  3. Step 3: Cross multiply
    75,287,618.40x = 112,931,427.60 × 67,067,997.60
  4. Step 4: Simplify right side
    75,287,618.40x = 7,574,084,715,241,374
  5. Step 5: Solve for x
    x = 7,574,084,715,241,374/75,287,618.40
  6. Step 6: Final answer
    x = 100,601,996.40

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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.