Home / 903,011,467.20-1,354,517,200.80-721,612,939.20

Finding the Fourth Proportional to 903,011,467.20, 1,354,517,200.80 and 721,612,939.20

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Solution

The fourth proportional to 903,011,467.20, 1,354,517,200.80 and 721,612,939.20 is: 1,082,419,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,011,467.20 : 1,354,517,200.80 = 721,612,939.20 : x
  2. Step 2: Convert to fraction form
    903,011,467.20/1,354,517,200.80 = 721,612,939.20/x
  3. Step 3: Cross multiply
    903,011,467.20x = 1,354,517,200.80 × 721,612,939.20
  4. Step 4: Simplify right side
    903,011,467.20x = 977,437,138,466,244,608
  5. Step 5: Solve for x
    x = 977,437,138,466,244,608/903,011,467.20
  6. Step 6: Final answer
    x = 1,082,419,408.80

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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.