Home / 20,513,168.60-30,771,382.22-6,866,387.02

Finding the Fourth Proportional to 20,513,168.60, 30,771,382.22 and 6,866,387.02

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Solution

The fourth proportional to 20,513,168.60, 30,771,382.22 and 6,866,387.02 is: 10,300,125.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513,168.60 : 30,771,382.22 = 6,866,387.02 : x
  2. Step 2: Convert to fraction form
    20,513,168.60/30,771,382.22 = 6,866,387.02/x
  3. Step 3: Cross multiply
    20,513,168.60x = 30,771,382.22 × 6,866,387.02
  4. Step 4: Simplify right side
    20,513,168.60x = 211,288,219,462,866.75
  5. Step 5: Solve for x
    x = 211,288,219,462,866.75/20,513,168.60
  6. Step 6: Final answer
    x = 10,300,125.91

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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.