Home / 20,895,705.40-31,281,556.65-15,528,151.30

Finding the Fourth Proportional to 20,895,705.40, 31,281,556.65 and 15,528,151.30

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Solution

The fourth proportional to 20,895,705.40, 31,281,556.65 and 15,528,151.30 is: 23,246,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895,705.40 : 31,281,556.65 = 15,528,151.30 : x
  2. Step 2: Convert to fraction form
    20,895,705.40/31,281,556.65 = 15,528,151.30/x
  3. Step 3: Cross multiply
    20,895,705.40x = 31,281,556.65 × 15,528,151.30
  4. Step 4: Simplify right side
    20,895,705.40x = 485,744,744,560,721.12
  5. Step 5: Solve for x
    x = 485,744,744,560,721.12/20,895,705.40
  6. Step 6: Final answer
    x = 23,246,152.03

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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.