Home / 8,047,423.40-12,071,135.10-7,315,215.80

Finding the Fourth Proportional to 8,047,423.40, 12,071,135.10 and 7,315,215.80

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Solution

The fourth proportional to 8,047,423.40, 12,071,135.10 and 7,315,215.80 is: 10,972,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047,423.40 : 12,071,135.10 = 7,315,215.80 : x
  2. Step 2: Convert to fraction form
    8,047,423.40/12,071,135.10 = 7,315,215.80/x
  3. Step 3: Cross multiply
    8,047,423.40x = 12,071,135.10 × 7,315,215.80
  4. Step 4: Simplify right side
    8,047,423.40x = 88,302,958,207,454.58
  5. Step 5: Solve for x
    x = 88,302,958,207,454.58/8,047,423.40
  6. Step 6: Final answer
    x = 10,972,823.70

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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.