Home / 56,854,132.74-78,458,703.30-30,748,650.57

Finding the Fourth Proportional to 56,854,132.74, 78,458,703.30 and 30,748,650.57

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Solution

The fourth proportional to 56,854,132.74, 78,458,703.30 and 30,748,650.57 is: 42,433,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,854,132.74 : 78,458,703.30 = 30,748,650.57 : x
  2. Step 2: Convert to fraction form
    56,854,132.74/78,458,703.30 = 30,748,650.57/x
  3. Step 3: Cross multiply
    56,854,132.74x = 78,458,703.30 × 30,748,650.57
  4. Step 4: Simplify right side
    56,854,132.74x = 2,412,499,251,947,006
  5. Step 5: Solve for x
    x = 2,412,499,251,947,006/56,854,132.74
  6. Step 6: Final answer
    x = 42,433,137.85

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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.