Home / 31,536,010.80-47,304,016.20-13,620,106.80

Finding the Fourth Proportional to 31,536,010.80, 47,304,016.20 and 13,620,106.80

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Solution

The fourth proportional to 31,536,010.80, 47,304,016.20 and 13,620,106.80 is: 20,430,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536,010.80 : 47,304,016.20 = 13,620,106.80 : x
  2. Step 2: Convert to fraction form
    31,536,010.80/47,304,016.20 = 13,620,106.80/x
  3. Step 3: Cross multiply
    31,536,010.80x = 47,304,016.20 × 13,620,106.80
  4. Step 4: Simplify right side
    31,536,010.80x = 644,285,752,712,930.25
  5. Step 5: Solve for x
    x = 644,285,752,712,930.25/31,536,010.80
  6. Step 6: Final answer
    x = 20,430,160.20

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1.5x scale

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.