Home / 56,854,020.72-78,387,455.30-47,448,340.32

Finding the Fourth Proportional to 56,854,020.72, 78,387,455.30 and 47,448,340.32

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Solution

The fourth proportional to 56,854,020.72, 78,387,455.30 and 47,448,340.32 is: 65,419,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,854,020.72 : 78,387,455.30 = 47,448,340.32 : x
  2. Step 2: Convert to fraction form
    56,854,020.72/78,387,455.30 = 47,448,340.32/x
  3. Step 3: Cross multiply
    56,854,020.72x = 78,387,455.30 × 47,448,340.32
  4. Step 4: Simplify right side
    56,854,020.72x = 3,719,354,655,893,187.50
  5. Step 5: Solve for x
    x = 3,719,354,655,893,187.50/56,854,020.72
  6. Step 6: Final answer
    x = 65,419,377.71

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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.