Home / 100,152,272.60-138,210,947.82-55,498,990.70

Finding the Fourth Proportional to 100,152,272.60, 138,210,947.82 and 55,498,990.70

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Solution

The fourth proportional to 100,152,272.60, 138,210,947.82 and 55,498,990.70 is: 76,589,056.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,152,272.60 : 138,210,947.82 = 55,498,990.70 : x
  2. Step 2: Convert to fraction form
    100,152,272.60/138,210,947.82 = 55,498,990.70/x
  3. Step 3: Cross multiply
    100,152,272.60x = 138,210,947.82 × 55,498,990.70
  4. Step 4: Simplify right side
    100,152,272.60x = 7,670,568,107,700,365
  5. Step 5: Solve for x
    x = 7,670,568,107,700,365/100,152,272.60
  6. Step 6: Final answer
    x = 76,589,056.93

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1.5x scale

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.