Home / 5,320,003.60-7,980,005.40-3,640,387.60

Finding the Fourth Proportional to 5,320,003.60, 7,980,005.40 and 3,640,387.60

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Solution

The fourth proportional to 5,320,003.60, 7,980,005.40 and 3,640,387.60 is: 5,460,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,003.60 : 7,980,005.40 = 3,640,387.60 : x
  2. Step 2: Convert to fraction form
    5,320,003.60/7,980,005.40 = 3,640,387.60/x
  3. Step 3: Cross multiply
    5,320,003.60x = 7,980,005.40 × 3,640,387.60
  4. Step 4: Simplify right side
    5,320,003.60x = 29,050,312,706,093.04
  5. Step 5: Solve for x
    x = 29,050,312,706,093.04/5,320,003.60
  6. Step 6: Final answer
    x = 5,460,581.40

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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.