Home / 71,826,779.40-107,740,169.10-43,128,965.40

Finding the Fourth Proportional to 71,826,779.40, 107,740,169.10 and 43,128,965.40

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Solution

The fourth proportional to 71,826,779.40, 107,740,169.10 and 43,128,965.40 is: 64,693,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,826,779.40 : 107,740,169.10 = 43,128,965.40 : x
  2. Step 2: Convert to fraction form
    71,826,779.40/107,740,169.10 = 43,128,965.40/x
  3. Step 3: Cross multiply
    71,826,779.40x = 107,740,169.10 × 43,128,965.40
  4. Step 4: Simplify right side
    71,826,779.40x = 4,646,722,025,304,049
  5. Step 5: Solve for x
    x = 4,646,722,025,304,049/71,826,779.40
  6. Step 6: Final answer
    x = 64,693,448.10

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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.