Home / 8,142,430.40-12,213,645.60-5,741,201.60

Finding the Fourth Proportional to 8,142,430.40, 12,213,645.60 and 5,741,201.60

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Solution

The fourth proportional to 8,142,430.40, 12,213,645.60 and 5,741,201.60 is: 8,611,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,430.40 : 12,213,645.60 = 5,741,201.60 : x
  2. Step 2: Convert to fraction form
    8,142,430.40/12,213,645.60 = 5,741,201.60/x
  3. Step 3: Cross multiply
    8,142,430.40x = 12,213,645.60 × 5,741,201.60
  4. Step 4: Simplify right side
    8,142,430.40x = 70,121,001,660,552.95
  5. Step 5: Solve for x
    x = 70,121,001,660,552.95/8,142,430.40
  6. Step 6: Final answer
    x = 8,611,802.40

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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.