Home / 8,038,431.40-12,057,647.10-7,422,572.20

Finding the Fourth Proportional to 8,038,431.40, 12,057,647.10 and 7,422,572.20

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Solution

The fourth proportional to 8,038,431.40, 12,057,647.10 and 7,422,572.20 is: 11,133,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,038,431.40 : 12,057,647.10 = 7,422,572.20 : x
  2. Step 2: Convert to fraction form
    8,038,431.40/12,057,647.10 = 7,422,572.20/x
  3. Step 3: Cross multiply
    8,038,431.40x = 12,057,647.10 × 7,422,572.20
  4. Step 4: Simplify right side
    8,038,431.40x = 89,498,756,161,870.62
  5. Step 5: Solve for x
    x = 89,498,756,161,870.62/8,038,431.40
  6. Step 6: Final answer
    x = 11,133,858.30

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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.