Home / 257,665,073.85-386,497,610.78-154,352,943.45

Finding the Fourth Proportional to 257,665,073.85, 386,497,610.78 and 154,352,943.45

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Solution

The fourth proportional to 257,665,073.85, 386,497,610.78 and 154,352,943.45 is: 231,529,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,665,073.85 : 386,497,610.78 = 154,352,943.45 : x
  2. Step 2: Convert to fraction form
    257,665,073.85/386,497,610.78 = 154,352,943.45/x
  3. Step 3: Cross multiply
    257,665,073.85x = 386,497,610.78 × 154,352,943.45
  4. Step 4: Simplify right side
    257,665,073.85x = 59,657,043,859,513,680
  5. Step 5: Solve for x
    x = 59,657,043,859,513,680/257,665,073.85
  6. Step 6: Final answer
    x = 231,529,415.18

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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.