Home / 68,778,209.17-103,167,295.30-47,147,231.87

Finding the Fourth Proportional to 68,778,209.17, 103,167,295.30 and 47,147,231.87

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Solution

The fourth proportional to 68,778,209.17, 103,167,295.30 and 47,147,231.87 is: 70,720,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,778,209.17 : 103,167,295.30 = 47,147,231.87 : x
  2. Step 2: Convert to fraction form
    68,778,209.17/103,167,295.30 = 47,147,231.87/x
  3. Step 3: Cross multiply
    68,778,209.17x = 103,167,295.30 × 47,147,231.87
  4. Step 4: Simplify right side
    68,778,209.17x = 4,864,052,392,483,724
  5. Step 5: Solve for x
    x = 4,864,052,392,483,724/68,778,209.17
  6. Step 6: Final answer
    x = 70,720,835.15

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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.