Home / 442,367,998.80-663,551,998.20-402,024,037.20

Finding the Fourth Proportional to 442,367,998.80, 663,551,998.20 and 402,024,037.20

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Solution

The fourth proportional to 442,367,998.80, 663,551,998.20 and 402,024,037.20 is: 603,036,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,367,998.80 : 663,551,998.20 = 402,024,037.20 : x
  2. Step 2: Convert to fraction form
    442,367,998.80/663,551,998.20 = 402,024,037.20/x
  3. Step 3: Cross multiply
    442,367,998.80x = 663,551,998.20 × 402,024,037.20
  4. Step 4: Simplify right side
    442,367,998.80x = 266,763,853,208,491,136
  5. Step 5: Solve for x
    x = 266,763,853,208,491,136/442,367,998.80
  6. Step 6: Final answer
    x = 603,036,055.80

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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.