Home / 56,771,168.97-78,344,243.46-30,665,686.26

Finding the Fourth Proportional to 56,771,168.97, 78,344,243.46 and 30,665,686.26

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Solution

The fourth proportional to 56,771,168.97, 78,344,243.46 and 30,665,686.26 is: 42,318,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771,168.97 : 78,344,243.46 = 30,665,686.26 : x
  2. Step 2: Convert to fraction form
    56,771,168.97/78,344,243.46 = 30,665,686.26/x
  3. Step 3: Cross multiply
    56,771,168.97x = 78,344,243.46 × 30,665,686.26
  4. Step 4: Simplify right side
    56,771,168.97x = 2,402,479,990,221,417
  5. Step 5: Solve for x
    x = 2,402,479,990,221,417/56,771,168.97
  6. Step 6: Final answer
    x = 42,318,663.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.