Home / 80,790,702.08-121,186,070.40-20,206,434.56

Finding the Fourth Proportional to 80,790,702.08, 121,186,070.40 and 20,206,434.56

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Solution

The fourth proportional to 80,790,702.08, 121,186,070.40 and 20,206,434.56 is: 30,309,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,790,702.08 : 121,186,070.40 = 20,206,434.56 : x
  2. Step 2: Convert to fraction form
    80,790,702.08/121,186,070.40 = 20,206,434.56/x
  3. Step 3: Cross multiply
    80,790,702.08x = 121,186,070.40 × 20,206,434.56
  4. Step 4: Simplify right side
    80,790,702.08x = 2,448,738,401,121,153
  5. Step 5: Solve for x
    x = 2,448,738,401,121,153/80,790,702.08
  6. Step 6: Final answer
    x = 30,309,656.16

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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.