Home / 7,381,143.70-11,071,715.55-5,228,807.65

Finding the Fourth Proportional to 7,381,143.70, 11,071,715.55 and 5,228,807.65

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Solution

The fourth proportional to 7,381,143.70, 11,071,715.55 and 5,228,807.65 is: 7,843,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381,143.70 : 11,071,715.55 = 5,228,807.65 : x
  2. Step 2: Convert to fraction form
    7,381,143.70/11,071,715.55 = 5,228,807.65/x
  3. Step 3: Cross multiply
    7,381,143.70x = 11,071,715.55 × 5,228,807.65
  4. Step 4: Simplify right side
    7,381,143.70x = 57,891,870,966,463.97
  5. Step 5: Solve for x
    x = 57,891,870,966,463.97/7,381,143.70
  6. Step 6: Final answer
    x = 7,843,211.48

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Double scale
Find fourth proportional to 7,381,144.70, 11,071,717.05 and 5,228,808.65
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.