Home / 86,923,246.70-130,384,870.05-72,893,204.30

Finding the Fourth Proportional to 86,923,246.70, 130,384,870.05 and 72,893,204.30

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Solution

The fourth proportional to 86,923,246.70, 130,384,870.05 and 72,893,204.30 is: 109,339,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,923,246.70 : 130,384,870.05 = 72,893,204.30 : x
  2. Step 2: Convert to fraction form
    86,923,246.70/130,384,870.05 = 72,893,204.30/x
  3. Step 3: Cross multiply
    86,923,246.70x = 130,384,870.05 × 72,893,204.30
  4. Step 4: Simplify right side
    86,923,246.70x = 9,504,170,970,183,600
  5. Step 5: Solve for x
    x = 9,504,170,970,183,600/86,923,246.70
  6. Step 6: Final answer
    x = 109,339,806.45

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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.