Home / 128,260,993.52-177,002,439-69,525,609.20

Finding the Fourth Proportional to 128,260,993.52, 177,002,439 and 69,525,609.20

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Solution

The fourth proportional to 128,260,993.52, 177,002,439 and 69,525,609.20 is: 95,946,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,260,993.52 : 177,002,439 = 69,525,609.20 : x
  2. Step 2: Convert to fraction form
    128,260,993.52/177,002,439 = 69,525,609.20/x
  3. Step 3: Cross multiply
    128,260,993.52x = 177,002,439 × 69,525,609.20
  4. Step 4: Simplify right side
    128,260,993.52x = 12,306,202,401,360,840
  5. Step 5: Solve for x
    x = 12,306,202,401,360,840/128,260,993.52
  6. Step 6: Final answer
    x = 95,946,570.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.