Home / 20,509,686.80-30,727,205.40-16,702,557.20

Finding the Fourth Proportional to 20,509,686.80, 30,727,205.40 and 16,702,557.20

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Solution

The fourth proportional to 20,509,686.80, 30,727,205.40 and 16,702,557.20 is: 25,023,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509,686.80 : 30,727,205.40 = 16,702,557.20 : x
  2. Step 2: Convert to fraction form
    20,509,686.80/30,727,205.40 = 16,702,557.20/x
  3. Step 3: Cross multiply
    20,509,686.80x = 30,727,205.40 × 16,702,557.20
  4. Step 4: Simplify right side
    20,509,686.80x = 513,222,905,789,648.81
  5. Step 5: Solve for x
    x = 513,222,905,789,648.81/20,509,686.80
  6. Step 6: Final answer
    x = 25,023,439.45

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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.