Home / 56,128,411.78-84,192,617.70-13,578,139.78

Finding the Fourth Proportional to 56,128,411.78, 84,192,617.70 and 13,578,139.78

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Solution

The fourth proportional to 56,128,411.78, 84,192,617.70 and 13,578,139.78 is: 20,367,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128,411.78 : 84,192,617.70 = 13,578,139.78 : x
  2. Step 2: Convert to fraction form
    56,128,411.78/84,192,617.70 = 13,578,139.78/x
  3. Step 3: Cross multiply
    56,128,411.78x = 84,192,617.70 × 13,578,139.78
  4. Step 4: Simplify right side
    56,128,411.78x = 1,143,179,131,574,702
  5. Step 5: Solve for x
    x = 1,143,179,131,574,702/56,128,411.78
  6. Step 6: Final answer
    x = 20,367,209.68

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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.