Home / 8,474,139.10-12,711,208.65-5,072,916.70

Finding the Fourth Proportional to 8,474,139.10, 12,711,208.65 and 5,072,916.70

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Solution

The fourth proportional to 8,474,139.10, 12,711,208.65 and 5,072,916.70 is: 7,609,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474,139.10 : 12,711,208.65 = 5,072,916.70 : x
  2. Step 2: Convert to fraction form
    8,474,139.10/12,711,208.65 = 5,072,916.70/x
  3. Step 3: Cross multiply
    8,474,139.10x = 12,711,208.65 × 5,072,916.70
  4. Step 4: Simplify right side
    8,474,139.10x = 64,482,902,637,769.46
  5. Step 5: Solve for x
    x = 64,482,902,637,769.46/8,474,139.10
  6. Step 6: Final answer
    x = 7,609,375.05

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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.