Home / 887,436,002.30-1,331,154,003.45-479,289,314.30

Finding the Fourth Proportional to 887,436,002.30, 1,331,154,003.45 and 479,289,314.30

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Solution

The fourth proportional to 887,436,002.30, 1,331,154,003.45 and 479,289,314.30 is: 718,933,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,436,002.30 : 1,331,154,003.45 = 479,289,314.30 : x
  2. Step 2: Convert to fraction form
    887,436,002.30/1,331,154,003.45 = 479,289,314.30/x
  3. Step 3: Cross multiply
    887,436,002.30x = 1,331,154,003.45 × 479,289,314.30
  4. Step 4: Simplify right side
    887,436,002.30x = 638,007,889,541,250,432
  5. Step 5: Solve for x
    x = 638,007,889,541,250,432/887,436,002.30
  6. Step 6: Final answer
    x = 718,933,971.45

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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.