Home / 870,399,200.80-1,304,465,060.40-352,405,626.40

Finding the Fourth Proportional to 870,399,200.80, 1,304,465,060.40 and 352,405,626.40

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Solution

The fourth proportional to 870,399,200.80, 1,304,465,060.40 and 352,405,626.40 is: 528,149,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,399,200.80 : 1,304,465,060.40 = 352,405,626.40 : x
  2. Step 2: Convert to fraction form
    870,399,200.80/1,304,465,060.40 = 352,405,626.40/x
  3. Step 3: Cross multiply
    870,399,200.80x = 1,304,465,060.40 × 352,405,626.40
  4. Step 4: Simplify right side
    870,399,200.80x = 459,700,826,727,175,808
  5. Step 5: Solve for x
    x = 459,700,826,727,175,808/870,399,200.80
  6. Step 6: Final answer
    x = 528,149,412.71

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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.