Home / 79,340,789.86-118,956,853.33-40,403,871.06

Finding the Fourth Proportional to 79,340,789.86, 118,956,853.33 and 40,403,871.06

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Solution

The fourth proportional to 79,340,789.86, 118,956,853.33 and 40,403,871.06 is: 60,578,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,340,789.86 : 118,956,853.33 = 40,403,871.06 : x
  2. Step 2: Convert to fraction form
    79,340,789.86/118,956,853.33 = 40,403,871.06/x
  3. Step 3: Cross multiply
    79,340,789.86x = 118,956,853.33 × 40,403,871.06
  4. Step 4: Simplify right side
    79,340,789.86x = 4,806,317,363,699,157
  5. Step 5: Solve for x
    x = 4,806,317,363,699,157/79,340,789.86
  6. Step 6: Final answer
    x = 60,578,138.59

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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.