Home / 7,280,769.40-10,921,154.10-5,013,287.80

Finding the Fourth Proportional to 7,280,769.40, 10,921,154.10 and 5,013,287.80

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Solution

The fourth proportional to 7,280,769.40, 10,921,154.10 and 5,013,287.80 is: 7,519,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280,769.40 : 10,921,154.10 = 5,013,287.80 : x
  2. Step 2: Convert to fraction form
    7,280,769.40/10,921,154.10 = 5,013,287.80/x
  3. Step 3: Cross multiply
    7,280,769.40x = 10,921,154.10 × 5,013,287.80
  4. Step 4: Simplify right side
    7,280,769.40x = 54,750,888,611,449.98
  5. Step 5: Solve for x
    x = 54,750,888,611,449.98/7,280,769.40
  6. Step 6: Final answer
    x = 7,519,931.70

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Similar ratio
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1.5x scale

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.