Home / 798,840,802.80-1,198,261,204.20-712,109,631.60

Finding the Fourth Proportional to 798,840,802.80, 1,198,261,204.20 and 712,109,631.60

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Solution

The fourth proportional to 798,840,802.80, 1,198,261,204.20 and 712,109,631.60 is: 1,068,164,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,840,802.80 : 1,198,261,204.20 = 712,109,631.60 : x
  2. Step 2: Convert to fraction form
    798,840,802.80/1,198,261,204.20 = 712,109,631.60/x
  3. Step 3: Cross multiply
    798,840,802.80x = 1,198,261,204.20 × 712,109,631.60
  4. Step 4: Simplify right side
    798,840,802.80x = 853,293,344,683,434,496
  5. Step 5: Solve for x
    x = 853,293,344,683,434,496/798,840,802.80
  6. Step 6: Final answer
    x = 1,068,164,447.40

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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.