Home / 1,228,330,132.20-1,842,495,198.30-614,834,641.80

Finding the Fourth Proportional to 1,228,330,132.20, 1,842,495,198.30 and 614,834,641.80

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Solution

The fourth proportional to 1,228,330,132.20, 1,842,495,198.30 and 614,834,641.80 is: 922,251,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,330,132.20 : 1,842,495,198.30 = 614,834,641.80 : x
  2. Step 2: Convert to fraction form
    1,228,330,132.20/1,842,495,198.30 = 614,834,641.80/x
  3. Step 3: Cross multiply
    1,228,330,132.20x = 1,842,495,198.30 × 614,834,641.80
  4. Step 4: Simplify right side
    1,228,330,132.20x = 1,132,829,875,265,000,320
  5. Step 5: Solve for x
    x = 1,132,829,875,265,000,320/1,228,330,132.20
  6. Step 6: Final answer
    x = 922,251,962.70

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Half scale
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Double scale
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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.