Home / 20,689,489.80-31,036,811.22-7,041,587.40

Finding the Fourth Proportional to 20,689,489.80, 31,036,811.22 and 7,041,587.40

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Solution

The fourth proportional to 20,689,489.80, 31,036,811.22 and 7,041,587.40 is: 10,563,258.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,489.80 : 31,036,811.22 = 7,041,587.40 : x
  2. Step 2: Convert to fraction form
    20,689,489.80/31,036,811.22 = 7,041,587.40/x
  3. Step 3: Cross multiply
    20,689,489.80x = 31,036,811.22 × 7,041,587.40
  4. Step 4: Simplify right side
    20,689,489.80x = 218,548,418,822,930.62
  5. Step 5: Solve for x
    x = 218,548,418,822,930.62/20,689,489.80
  6. Step 6: Final answer
    x = 10,563,258.01

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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.