Home / 715,392,018.40-1,073,088,027.60-687,174,469.60

Finding the Fourth Proportional to 715,392,018.40, 1,073,088,027.60 and 687,174,469.60

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Solution

The fourth proportional to 715,392,018.40, 1,073,088,027.60 and 687,174,469.60 is: 1,030,761,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,392,018.40 : 1,073,088,027.60 = 687,174,469.60 : x
  2. Step 2: Convert to fraction form
    715,392,018.40/1,073,088,027.60 = 687,174,469.60/x
  3. Step 3: Cross multiply
    715,392,018.40x = 1,073,088,027.60 × 687,174,469.60
  4. Step 4: Simplify right side
    715,392,018.40x = 737,398,696,200,140,160
  5. Step 5: Solve for x
    x = 737,398,696,200,140,160/715,392,018.40
  6. Step 6: Final answer
    x = 1,030,761,704.40

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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.