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Finding the Fourth Proportional to 665,963,117.70, 998,944,676.55 and 282,960,903.30

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Solution

The fourth proportional to 665,963,117.70, 998,944,676.55 and 282,960,903.30 is: 424,441,354.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,963,117.70 : 998,944,676.55 = 282,960,903.30 : x
  2. Step 2: Convert to fraction form
    665,963,117.70/998,944,676.55 = 282,960,903.30/x
  3. Step 3: Cross multiply
    665,963,117.70x = 998,944,676.55 × 282,960,903.30
  4. Step 4: Simplify right side
    665,963,117.70x = 282,662,288,023,314,336
  5. Step 5: Solve for x
    x = 282,662,288,023,314,336/665,963,117.70
  6. Step 6: Final answer
    x = 424,441,354.95

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Double scale
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Similar ratio
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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.