Home / 515,041,834.12-772,903,080.90-242,490,545.80

Finding the Fourth Proportional to 515,041,834.12, 772,903,080.90 and 242,490,545.80

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Solution

The fourth proportional to 515,041,834.12, 772,903,080.90 and 242,490,545.80 is: 363,896,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,041,834.12 : 772,903,080.90 = 242,490,545.80 : x
  2. Step 2: Convert to fraction form
    515,041,834.12/772,903,080.90 = 242,490,545.80/x
  3. Step 3: Cross multiply
    515,041,834.12x = 772,903,080.90 × 242,490,545.80
  4. Step 4: Simplify right side
    515,041,834.12x = 187,421,689,937,942,560
  5. Step 5: Solve for x
    x = 187,421,689,937,942,560/515,041,834.12
  6. Step 6: Final answer
    x = 363,896,051.78

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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.