Home / 56,771,517.45-78,344,728.40-30,666,046.81

Finding the Fourth Proportional to 56,771,517.45, 78,344,728.40 and 30,666,046.81

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Solution

The fourth proportional to 56,771,517.45, 78,344,728.40 and 30,666,046.81 is: 42,319,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771,517.45 : 78,344,728.40 = 30,666,046.81 : x
  2. Step 2: Convert to fraction form
    56,771,517.45/78,344,728.40 = 30,666,046.81/x
  3. Step 3: Cross multiply
    56,771,517.45x = 78,344,728.40 × 30,666,046.81
  4. Step 4: Simplify right side
    56,771,517.45x = 2,402,523,108,081,944.50
  5. Step 5: Solve for x
    x = 2,402,523,108,081,944.50/56,771,517.45
  6. Step 6: Final answer
    x = 42,319,163.13

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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.