Home / 105,689,154.20-158,481,864.77-43,429,189.66

Finding the Fourth Proportional to 105,689,154.20, 158,481,864.77 and 43,429,189.66

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Solution

The fourth proportional to 105,689,154.20, 158,481,864.77 and 43,429,189.66 is: 65,122,471.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,689,154.20 : 158,481,864.77 = 43,429,189.66 : x
  2. Step 2: Convert to fraction form
    105,689,154.20/158,481,864.77 = 43,429,189.66/x
  3. Step 3: Cross multiply
    105,689,154.20x = 158,481,864.77 × 43,429,189.66
  4. Step 4: Simplify right side
    105,689,154.20x = 6,882,738,963,271,581
  5. Step 5: Solve for x
    x = 6,882,738,963,271,581/105,689,154.20
  6. Step 6: Final answer
    x = 65,122,471.79

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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.