Home / 85,178,167.80-127,767,251.70-36,679,255.80

Finding the Fourth Proportional to 85,178,167.80, 127,767,251.70 and 36,679,255.80

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Solution

The fourth proportional to 85,178,167.80, 127,767,251.70 and 36,679,255.80 is: 55,018,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,178,167.80 : 127,767,251.70 = 36,679,255.80 : x
  2. Step 2: Convert to fraction form
    85,178,167.80/127,767,251.70 = 36,679,255.80/x
  3. Step 3: Cross multiply
    85,178,167.80x = 127,767,251.70 × 36,679,255.80
  4. Step 4: Simplify right side
    85,178,167.80x = 4,686,407,707,967,285
  5. Step 5: Solve for x
    x = 4,686,407,707,967,285/85,178,167.80
  6. Step 6: Final answer
    x = 55,018,883.70

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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.