Home / 3,128,187.60-4,385,761.20-3,128,187.60

Finding the Fourth Proportional to 3,128,187.60, 4,385,761.20 and 3,128,187.60

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Solution

The fourth proportional to 3,128,187.60, 4,385,761.20 and 3,128,187.60 is: 4,385,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,187.60 : 4,385,761.20 = 3,128,187.60 : x
  2. Step 2: Convert to fraction form
    3,128,187.60/4,385,761.20 = 3,128,187.60/x
  3. Step 3: Cross multiply
    3,128,187.60x = 4,385,761.20 × 3,128,187.60
  4. Step 4: Simplify right side
    3,128,187.60x = 13,719,483,802,401.12
  5. Step 5: Solve for x
    x = 13,719,483,802,401.12/3,128,187.60
  6. Step 6: Final answer
    x = 4,385,761.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.