Home / 20,509,689.60-30,764,534.40-8,540,870.40

Finding the Fourth Proportional to 20,509,689.60, 30,764,534.40 and 8,540,870.40

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Solution

The fourth proportional to 20,509,689.60, 30,764,534.40 and 8,540,870.40 is: 12,811,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509,689.60 : 30,764,534.40 = 8,540,870.40 : x
  2. Step 2: Convert to fraction form
    20,509,689.60/30,764,534.40 = 8,540,870.40/x
  3. Step 3: Cross multiply
    20,509,689.60x = 30,764,534.40 × 8,540,870.40
  4. Step 4: Simplify right side
    20,509,689.60x = 262,755,901,226,741.75
  5. Step 5: Solve for x
    x = 262,755,901,226,741.75/20,509,689.60
  6. Step 6: Final answer
    x = 12,811,305.60

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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.