Home / 130,278,715.70-195,376,657.43-42,820,060.82

Finding the Fourth Proportional to 130,278,715.70, 195,376,657.43 and 42,820,060.82

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Solution

The fourth proportional to 130,278,715.70, 195,376,657.43 and 42,820,060.82 is: 64,216,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,278,715.70 : 195,376,657.43 = 42,820,060.82 : x
  2. Step 2: Convert to fraction form
    130,278,715.70/195,376,657.43 = 42,820,060.82/x
  3. Step 3: Cross multiply
    130,278,715.70x = 195,376,657.43 × 42,820,060.82
  4. Step 4: Simplify right side
    130,278,715.70x = 8,366,040,352,769,921
  5. Step 5: Solve for x
    x = 8,366,040,352,769,921/130,278,715.70
  6. Step 6: Final answer
    x = 64,216,478.56

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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.