Home / 20,860,644,976.06-31,304,915,985.06-8,911,689,770.57

Finding the Fourth Proportional to 20,860,644,976.06, 31,304,915,985.06 and 8,911,689,770.57

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Solution

The fourth proportional to 20,860,644,976.06, 31,304,915,985.06 and 8,911,689,770.57 is: 13,373,493,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,644,976.06 : 31,304,915,985.06 = 8,911,689,770.57 : x
  2. Step 2: Convert to fraction form
    20,860,644,976.06/31,304,915,985.06 = 8,911,689,770.57/x
  3. Step 3: Cross multiply
    20,860,644,976.06x = 31,304,915,985.06 × 8,911,689,770.57
  4. Step 4: Simplify right side
    20,860,644,976.06x = 278,979,699,552,462,241,792
  5. Step 5: Solve for x
    x = 278,979,699,552,462,241,792/20,860,644,976.06
  6. Step 6: Final answer
    x = 13,373,493,478.87

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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.