Home / 43,396,781.40-65,071,520.10-13,100,707.80

Finding the Fourth Proportional to 43,396,781.40, 65,071,520.10 and 13,100,707.80

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Solution

The fourth proportional to 43,396,781.40, 65,071,520.10 and 13,100,707.80 is: 19,643,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,396,781.40 : 65,071,520.10 = 13,100,707.80 : x
  2. Step 2: Convert to fraction form
    43,396,781.40/65,071,520.10 = 13,100,707.80/x
  3. Step 3: Cross multiply
    43,396,781.40x = 65,071,520.10 × 13,100,707.80
  4. Step 4: Simplify right side
    43,396,781.40x = 852,482,970,931,926.88
  5. Step 5: Solve for x
    x = 852,482,970,931,926.88/43,396,781.40
  6. Step 6: Final answer
    x = 19,643,921.59

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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.