Home / 56,852,761.79-78,456,863.67-30,747,279.65

Finding the Fourth Proportional to 56,852,761.79, 78,456,863.67 and 30,747,279.65

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Solution

The fourth proportional to 56,852,761.79, 78,456,863.67 and 30,747,279.65 is: 42,431,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,852,761.79 : 78,456,863.67 = 30,747,279.65 : x
  2. Step 2: Convert to fraction form
    56,852,761.79/78,456,863.67 = 30,747,279.65/x
  3. Step 3: Cross multiply
    56,852,761.79x = 78,456,863.67 × 30,747,279.65
  4. Step 4: Simplify right side
    56,852,761.79x = 2,412,335,127,259,151.50
  5. Step 5: Solve for x
    x = 2,412,335,127,259,151.50/56,852,761.79
  6. Step 6: Final answer
    x = 42,431,274.25

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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.