Home / 85,826,883.40-128,628,350.70-39,763,414.60

Finding the Fourth Proportional to 85,826,883.40, 128,628,350.70 and 39,763,414.60

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Solution

The fourth proportional to 85,826,883.40, 128,628,350.70 and 39,763,414.60 is: 59,593,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,826,883.40 : 128,628,350.70 = 39,763,414.60 : x
  2. Step 2: Convert to fraction form
    85,826,883.40/128,628,350.70 = 39,763,414.60/x
  3. Step 3: Cross multiply
    85,826,883.40x = 128,628,350.70 × 39,763,414.60
  4. Step 4: Simplify right side
    85,826,883.40x = 5,114,702,438,198,301
  5. Step 5: Solve for x
    x = 5,114,702,438,198,301/85,826,883.40
  6. Step 6: Final answer
    x = 59,593,244.40

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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.