Home / 217,830,147.90-326,745,221.85-79,655,487.90

Finding the Fourth Proportional to 217,830,147.90, 326,745,221.85 and 79,655,487.90

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Solution

The fourth proportional to 217,830,147.90, 326,745,221.85 and 79,655,487.90 is: 119,483,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,830,147.90 : 326,745,221.85 = 79,655,487.90 : x
  2. Step 2: Convert to fraction form
    217,830,147.90/326,745,221.85 = 79,655,487.90/x
  3. Step 3: Cross multiply
    217,830,147.90x = 326,745,221.85 × 79,655,487.90
  4. Step 4: Simplify right side
    217,830,147.90x = 26,027,050,065,455,496
  5. Step 5: Solve for x
    x = 26,027,050,065,455,496/217,830,147.90
  6. Step 6: Final answer
    x = 119,483,231.85

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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.