Home / 262,109,019.60-393,415,471.80-132,862,568.40

Finding the Fourth Proportional to 262,109,019.60, 393,415,471.80 and 132,862,568.40

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Solution

The fourth proportional to 262,109,019.60, 393,415,471.80 and 132,862,568.40 is: 199,421,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,109,019.60 : 393,415,471.80 = 132,862,568.40 : x
  2. Step 2: Convert to fraction form
    262,109,019.60/393,415,471.80 = 132,862,568.40/x
  3. Step 3: Cross multiply
    262,109,019.60x = 393,415,471.80 × 132,862,568.40
  4. Step 4: Simplify right side
    262,109,019.60x = 52,270,190,031,645,776
  5. Step 5: Solve for x
    x = 52,270,190,031,645,776/262,109,019.60
  6. Step 6: Final answer
    x = 199,421,561.73

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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.