Home / 42,646,543.70-63,969,815.55-21,084,473.30

Finding the Fourth Proportional to 42,646,543.70, 63,969,815.55 and 21,084,473.30

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Solution

The fourth proportional to 42,646,543.70, 63,969,815.55 and 21,084,473.30 is: 31,626,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,646,543.70 : 63,969,815.55 = 21,084,473.30 : x
  2. Step 2: Convert to fraction form
    42,646,543.70/63,969,815.55 = 21,084,473.30/x
  3. Step 3: Cross multiply
    42,646,543.70x = 63,969,815.55 × 21,084,473.30
  4. Step 4: Simplify right side
    42,646,543.70x = 1,348,769,867,969,899.75
  5. Step 5: Solve for x
    x = 1,348,769,867,969,899.75/42,646,543.70
  6. Step 6: Final answer
    x = 31,626,709.95

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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.