Home / 141,178,048.27-194,830,432.38-78,456,790.15

Finding the Fourth Proportional to 141,178,048.27, 194,830,432.38 and 78,456,790.15

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Solution

The fourth proportional to 141,178,048.27, 194,830,432.38 and 78,456,790.15 is: 108,272,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,178,048.27 : 194,830,432.38 = 78,456,790.15 : x
  2. Step 2: Convert to fraction form
    141,178,048.27/194,830,432.38 = 78,456,790.15/x
  3. Step 3: Cross multiply
    141,178,048.27x = 194,830,432.38 × 78,456,790.15
  4. Step 4: Simplify right side
    141,178,048.27x = 15,285,770,346,704,988
  5. Step 5: Solve for x
    x = 15,285,770,346,704,988/141,178,048.27
  6. Step 6: Final answer
    x = 108,272,996.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.