Home / 7,381,130.70-11,071,696.05-6,371,392.80

Finding the Fourth Proportional to 7,381,130.70, 11,071,696.05 and 6,371,392.80

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Solution

The fourth proportional to 7,381,130.70, 11,071,696.05 and 6,371,392.80 is: 9,557,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381,130.70 : 11,071,696.05 = 6,371,392.80 : x
  2. Step 2: Convert to fraction form
    7,381,130.70/11,071,696.05 = 6,371,392.80/x
  3. Step 3: Cross multiply
    7,381,130.70x = 11,071,696.05 × 6,371,392.80
  4. Step 4: Simplify right side
    7,381,130.70x = 70,542,124,496,758.44
  5. Step 5: Solve for x
    x = 70,542,124,496,758.44/7,381,130.70
  6. Step 6: Final answer
    x = 9,557,089.20

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Double scale
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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.