Home / 720,182,735.52-1,080,148,919.40-202,490,311.20

Finding the Fourth Proportional to 720,182,735.52, 1,080,148,919.40 and 202,490,311.20

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Solution

The fourth proportional to 720,182,735.52, 1,080,148,919.40 and 202,490,311.20 is: 303,700,269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,182,735.52 : 1,080,148,919.40 = 202,490,311.20 : x
  2. Step 2: Convert to fraction form
    720,182,735.52/1,080,148,919.40 = 202,490,311.20/x
  3. Step 3: Cross multiply
    720,182,735.52x = 1,080,148,919.40 × 202,490,311.20
  4. Step 4: Simplify right side
    720,182,735.52x = 218,719,690,831,649,728
  5. Step 5: Solve for x
    x = 218,719,690,831,649,728/720,182,735.52
  6. Step 6: Final answer
    x = 303,700,269.45

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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.