Home / 398,189,957.20-597,312,929.40-225,749,381.20

Finding the Fourth Proportional to 398,189,957.20, 597,312,929.40 and 225,749,381.20

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Solution

The fourth proportional to 398,189,957.20, 597,312,929.40 and 225,749,381.20 is: 338,639,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,189,957.20 : 597,312,929.40 = 225,749,381.20 : x
  2. Step 2: Convert to fraction form
    398,189,957.20/597,312,929.40 = 225,749,381.20/x
  3. Step 3: Cross multiply
    398,189,957.20x = 597,312,929.40 × 225,749,381.20
  4. Step 4: Simplify right side
    398,189,957.20x = 134,843,024,194,809,280
  5. Step 5: Solve for x
    x = 134,843,024,194,809,280/398,189,957.20
  6. Step 6: Final answer
    x = 338,639,942.46

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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.