Home / 8,038,266.40-12,057,399.60-7,422,407.20

Finding the Fourth Proportional to 8,038,266.40, 12,057,399.60 and 7,422,407.20

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Solution

The fourth proportional to 8,038,266.40, 12,057,399.60 and 7,422,407.20 is: 11,133,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,038,266.40 : 12,057,399.60 = 7,422,407.20 : x
  2. Step 2: Convert to fraction form
    8,038,266.40/12,057,399.60 = 7,422,407.20/x
  3. Step 3: Cross multiply
    8,038,266.40x = 12,057,399.60 × 7,422,407.20
  4. Step 4: Simplify right side
    8,038,266.40x = 89,494,929,604,317.12
  5. Step 5: Solve for x
    x = 89,494,929,604,317.12/8,038,266.40
  6. Step 6: Final answer
    x = 11,133,610.80

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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.