Home / 870,912,964.60-1,306,369,446.90-655,922,116.60

Finding the Fourth Proportional to 870,912,964.60, 1,306,369,446.90 and 655,922,116.60

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Solution

The fourth proportional to 870,912,964.60, 1,306,369,446.90 and 655,922,116.60 is: 983,883,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,964.60 : 1,306,369,446.90 = 655,922,116.60 : x
  2. Step 2: Convert to fraction form
    870,912,964.60/1,306,369,446.90 = 655,922,116.60/x
  3. Step 3: Cross multiply
    870,912,964.60x = 1,306,369,446.90 × 655,922,116.60
  4. Step 4: Simplify right side
    870,912,964.60x = 856,876,612,672,219,392
  5. Step 5: Solve for x
    x = 856,876,612,672,219,392/870,912,964.60
  6. Step 6: Final answer
    x = 983,883,174.90

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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.