Home / 870,822,396.40-1,304,442,004.20-440,243,503.60

Finding the Fourth Proportional to 870,822,396.40, 1,304,442,004.20 and 440,243,503.60

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Solution

The fourth proportional to 870,822,396.40, 1,304,442,004.20 and 440,243,503.60 is: 659,459,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,822,396.40 : 1,304,442,004.20 = 440,243,503.60 : x
  2. Step 2: Convert to fraction form
    870,822,396.40/1,304,442,004.20 = 440,243,503.60/x
  3. Step 3: Cross multiply
    870,822,396.40x = 1,304,442,004.20 × 440,243,503.60
  4. Step 4: Simplify right side
    870,822,396.40x = 574,272,118,172,013,952
  5. Step 5: Solve for x
    x = 574,272,118,172,013,952/870,822,396.40
  6. Step 6: Final answer
    x = 659,459,518.43

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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.