Home / 686,718,082.60-1,030,077,123.90-659,933,456.20

Finding the Fourth Proportional to 686,718,082.60, 1,030,077,123.90 and 659,933,456.20

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Solution

The fourth proportional to 686,718,082.60, 1,030,077,123.90 and 659,933,456.20 is: 989,900,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,718,082.60 : 1,030,077,123.90 = 659,933,456.20 : x
  2. Step 2: Convert to fraction form
    686,718,082.60/1,030,077,123.90 = 659,933,456.20/x
  3. Step 3: Cross multiply
    686,718,082.60x = 1,030,077,123.90 × 659,933,456.20
  4. Step 4: Simplify right side
    686,718,082.60x = 679,782,356,527,882,624
  5. Step 5: Solve for x
    x = 679,782,356,527,882,624/686,718,082.60
  6. Step 6: Final answer
    x = 989,900,184.30

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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.