Home / 280,456,727.88-387,050,311.50-155,006,227.80

Finding the Fourth Proportional to 280,456,727.88, 387,050,311.50 and 155,006,227.80

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Solution

The fourth proportional to 280,456,727.88, 387,050,311.50 and 155,006,227.80 is: 213,919,663.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,456,727.88 : 387,050,311.50 = 155,006,227.80 : x
  2. Step 2: Convert to fraction form
    280,456,727.88/387,050,311.50 = 155,006,227.80/x
  3. Step 3: Cross multiply
    280,456,727.88x = 387,050,311.50 × 155,006,227.80
  4. Step 4: Simplify right side
    280,456,727.88x = 59,995,208,754,429,968
  5. Step 5: Solve for x
    x = 59,995,208,754,429,968/280,456,727.88
  6. Step 6: Final answer
    x = 213,919,663.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.