Home / 887,435,998.80-1,331,153,998.20-479,289,310.80

Finding the Fourth Proportional to 887,435,998.80, 1,331,153,998.20 and 479,289,310.80

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Solution

The fourth proportional to 887,435,998.80, 1,331,153,998.20 and 479,289,310.80 is: 718,933,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,435,998.80 : 1,331,153,998.20 = 479,289,310.80 : x
  2. Step 2: Convert to fraction form
    887,435,998.80/1,331,153,998.20 = 479,289,310.80/x
  3. Step 3: Cross multiply
    887,435,998.80x = 1,331,153,998.20 × 479,289,310.80
  4. Step 4: Simplify right side
    887,435,998.80x = 638,007,882,365,942,528
  5. Step 5: Solve for x
    x = 638,007,882,365,942,528/887,435,998.80
  6. Step 6: Final answer
    x = 718,933,966.20

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1.5x scale

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.