Home / 427,957,404.75-642,155,750.82-203,862,882.60

Finding the Fourth Proportional to 427,957,404.75, 642,155,750.82 and 203,862,882.60

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Solution

The fourth proportional to 427,957,404.75, 642,155,750.82 and 203,862,882.60 is: 305,898,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,957,404.75 : 642,155,750.82 = 203,862,882.60 : x
  2. Step 2: Convert to fraction form
    427,957,404.75/642,155,750.82 = 203,862,882.60/x
  3. Step 3: Cross multiply
    427,957,404.75x = 642,155,750.82 × 203,862,882.60
  4. Step 4: Simplify right side
    427,957,404.75x = 130,911,722,440,332,528
  5. Step 5: Solve for x
    x = 130,911,722,440,332,528/427,957,404.75
  6. Step 6: Final answer
    x = 305,898,953.93

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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.