Home / 20,160,916.30-30,222,020.85-6,690,810.70

Finding the Fourth Proportional to 20,160,916.30, 30,222,020.85 and 6,690,810.70

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Solution

The fourth proportional to 20,160,916.30, 30,222,020.85 and 6,690,810.70 is: 10,029,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,916.30 : 30,222,020.85 = 6,690,810.70 : x
  2. Step 2: Convert to fraction form
    20,160,916.30/30,222,020.85 = 6,690,810.70/x
  3. Step 3: Cross multiply
    20,160,916.30x = 30,222,020.85 × 6,690,810.70
  4. Step 4: Simplify right side
    20,160,916.30x = 202,209,820,478,803.12
  5. Step 5: Solve for x
    x = 202,209,820,478,803.12/20,160,916.30
  6. Step 6: Final answer
    x = 10,029,793.16

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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.