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Finding the Fourth Proportional to 659,633,141.70, 989,449,712.55 and 504,664,946.10

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Solution

The fourth proportional to 659,633,141.70, 989,449,712.55 and 504,664,946.10 is: 756,997,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,633,141.70 : 989,449,712.55 = 504,664,946.10 : x
  2. Step 2: Convert to fraction form
    659,633,141.70/989,449,712.55 = 504,664,946.10/x
  3. Step 3: Cross multiply
    659,633,141.70x = 989,449,712.55 × 504,664,946.10
  4. Step 4: Simplify right side
    659,633,141.70x = 499,340,585,852,706,240
  5. Step 5: Solve for x
    x = 499,340,585,852,706,240/659,633,141.70
  6. Step 6: Final answer
    x = 756,997,419.15

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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.