Home / 111,703,346.10-167,555,019.15-77,265,969.30

Finding the Fourth Proportional to 111,703,346.10, 167,555,019.15 and 77,265,969.30

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Solution

The fourth proportional to 111,703,346.10, 167,555,019.15 and 77,265,969.30 is: 115,898,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,703,346.10 : 167,555,019.15 = 77,265,969.30 : x
  2. Step 2: Convert to fraction form
    111,703,346.10/167,555,019.15 = 77,265,969.30/x
  3. Step 3: Cross multiply
    111,703,346.10x = 167,555,019.15 × 77,265,969.30
  4. Step 4: Simplify right side
    111,703,346.10x = 12,946,300,965,704,812
  5. Step 5: Solve for x
    x = 12,946,300,965,704,812/111,703,346.10
  6. Step 6: Final answer
    x = 115,898,953.95

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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.