Home / 141,660,663.17-212,329,807.74-86,206,191.03

Finding the Fourth Proportional to 141,660,663.17, 212,329,807.74 and 86,206,191.03

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Solution

The fourth proportional to 141,660,663.17, 212,329,807.74 and 86,206,191.03 is: 129,211,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,660,663.17 : 212,329,807.74 = 86,206,191.03 : x
  2. Step 2: Convert to fraction form
    141,660,663.17/212,329,807.74 = 86,206,191.03/x
  3. Step 3: Cross multiply
    141,660,663.17x = 212,329,807.74 × 86,206,191.03
  4. Step 4: Simplify right side
    141,660,663.17x = 18,304,143,967,397,612
  5. Step 5: Solve for x
    x = 18,304,143,967,397,612/141,660,663.17
  6. Step 6: Final answer
    x = 129,211,197.79

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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.