Home / 92,279,339.40-138,419,009.10-90,844,448.70

Finding the Fourth Proportional to 92,279,339.40, 138,419,009.10 and 90,844,448.70

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Solution

The fourth proportional to 92,279,339.40, 138,419,009.10 and 90,844,448.70 is: 136,266,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,279,339.40 : 138,419,009.10 = 90,844,448.70 : x
  2. Step 2: Convert to fraction form
    92,279,339.40/138,419,009.10 = 90,844,448.70/x
  3. Step 3: Cross multiply
    92,279,339.40x = 138,419,009.10 × 90,844,448.70
  4. Step 4: Simplify right side
    92,279,339.40x = 12,574,598,571,289,784
  5. Step 5: Solve for x
    x = 12,574,598,571,289,784/92,279,339.40
  6. Step 6: Final answer
    x = 136,266,673.05

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1.5x scale

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.