Home / 1,009,905,892.60-1,512,307,922.10-662,981,207.80

Finding the Fourth Proportional to 1,009,905,892.60, 1,512,307,922.10 and 662,981,207.80

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Solution

The fourth proportional to 1,009,905,892.60, 1,512,307,922.10 and 662,981,207.80 is: 992,797,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,905,892.60 : 1,512,307,922.10 = 662,981,207.80 : x
  2. Step 2: Convert to fraction form
    1,009,905,892.60/1,512,307,922.10 = 662,981,207.80/x
  3. Step 3: Cross multiply
    1,009,905,892.60x = 1,512,307,922.10 × 662,981,207.80
  4. Step 4: Simplify right side
    1,009,905,892.60x = 1,002,631,732,759,366,144
  5. Step 5: Solve for x
    x = 1,002,631,732,759,366,144/1,009,905,892.60
  6. Step 6: Final answer
    x = 992,797,190.42

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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.