Home / 117,471,866.20-176,039,837.70-86,524,941.40

Finding the Fourth Proportional to 117,471,866.20, 176,039,837.70 and 86,524,941.40

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Solution

The fourth proportional to 117,471,866.20, 176,039,837.70 and 86,524,941.40 is: 129,663,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471,866.20 : 176,039,837.70 = 86,524,941.40 : x
  2. Step 2: Convert to fraction form
    117,471,866.20/176,039,837.70 = 86,524,941.40/x
  3. Step 3: Cross multiply
    117,471,866.20x = 176,039,837.70 × 86,524,941.40
  4. Step 4: Simplify right side
    117,471,866.20x = 15,231,836,641,058,010
  5. Step 5: Solve for x
    x = 15,231,836,641,058,010/117,471,866.20
  6. Step 6: Final answer
    x = 129,663,698.50

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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.