Home / 119,795,143.15-179,767,105.52-76,695,278.05

Finding the Fourth Proportional to 119,795,143.15, 179,767,105.52 and 76,695,278.05

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Solution

The fourth proportional to 119,795,143.15, 179,767,105.52 and 76,695,278.05 is: 115,090,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,795,143.15 : 179,767,105.52 = 76,695,278.05 : x
  2. Step 2: Convert to fraction form
    119,795,143.15/179,767,105.52 = 76,695,278.05/x
  3. Step 3: Cross multiply
    119,795,143.15x = 179,767,105.52 × 76,695,278.05
  4. Step 4: Simplify right side
    119,795,143.15x = 13,787,288,142,100,090
  5. Step 5: Solve for x
    x = 13,787,288,142,100,090/119,795,143.15
  6. Step 6: Final answer
    x = 115,090,543.57

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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.