Home / 128,260,991.52-177,002,436.24-69,525,607.20

Finding the Fourth Proportional to 128,260,991.52, 177,002,436.24 and 69,525,607.20

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Solution

The fourth proportional to 128,260,991.52, 177,002,436.24 and 69,525,607.20 is: 95,946,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,260,991.52 : 177,002,436.24 = 69,525,607.20 : x
  2. Step 2: Convert to fraction form
    128,260,991.52/177,002,436.24 = 69,525,607.20/x
  3. Step 3: Cross multiply
    128,260,991.52x = 177,002,436.24 × 69,525,607.20
  4. Step 4: Simplify right side
    128,260,991.52x = 12,306,201,855,465,286
  5. Step 5: Solve for x
    x = 12,306,201,855,465,286/128,260,991.52
  6. Step 6: Final answer
    x = 95,946,567.30

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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.