Home / 870,940,490.40-1,304,619,145.20-440,361,597.60

Finding the Fourth Proportional to 870,940,490.40, 1,304,619,145.20 and 440,361,597.60

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Solution

The fourth proportional to 870,940,490.40, 1,304,619,145.20 and 440,361,597.60 is: 659,636,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,940,490.40 : 1,304,619,145.20 = 440,361,597.60 : x
  2. Step 2: Convert to fraction form
    870,940,490.40/1,304,619,145.20 = 440,361,597.60/x
  3. Step 3: Cross multiply
    870,940,490.40x = 1,304,619,145.20 × 440,361,597.60
  4. Step 4: Simplify right side
    870,940,490.40x = 574,504,171,039,818,432
  5. Step 5: Solve for x
    x = 574,504,171,039,818,432/870,940,490.40
  6. Step 6: Final answer
    x = 659,636,539.32

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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.