Home / 79,488,001.20-119,232,001.80-39,177,217.20

Finding the Fourth Proportional to 79,488,001.20, 119,232,001.80 and 39,177,217.20

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Solution

The fourth proportional to 79,488,001.20, 119,232,001.80 and 39,177,217.20 is: 58,765,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,488,001.20 : 119,232,001.80 = 39,177,217.20 : x
  2. Step 2: Convert to fraction form
    79,488,001.20/119,232,001.80 = 39,177,217.20/x
  3. Step 3: Cross multiply
    79,488,001.20x = 119,232,001.80 × 39,177,217.20
  4. Step 4: Simplify right side
    79,488,001.20x = 4,671,178,031,709,391
  5. Step 5: Solve for x
    x = 4,671,178,031,709,391/79,488,001.20
  6. Step 6: Final answer
    x = 58,765,825.80

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Similar ratio
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1.5x scale

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.