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Finding the Fourth Proportional to 659,098,393.80, 988,647,590.70 and 506,514,611.40

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Solution

The fourth proportional to 659,098,393.80, 988,647,590.70 and 506,514,611.40 is: 759,771,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,098,393.80 : 988,647,590.70 = 506,514,611.40 : x
  2. Step 2: Convert to fraction form
    659,098,393.80/988,647,590.70 = 506,514,611.40/x
  3. Step 3: Cross multiply
    659,098,393.80x = 988,647,590.70 × 506,514,611.40
  4. Step 4: Simplify right side
    659,098,393.80x = 500,764,450,214,956,736
  5. Step 5: Solve for x
    x = 500,764,450,214,956,736/659,098,393.80
  6. Step 6: Final answer
    x = 759,771,917.10

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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.