Home / 140,555,432.67-193,968,478.02-80,983,805.28

Finding the Fourth Proportional to 140,555,432.67, 193,968,478.02 and 80,983,805.28

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Solution

The fourth proportional to 140,555,432.67, 193,968,478.02 and 80,983,805.28 is: 111,758,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,555,432.67 : 193,968,478.02 = 80,983,805.28 : x
  2. Step 2: Convert to fraction form
    140,555,432.67/193,968,478.02 = 80,983,805.28/x
  3. Step 3: Cross multiply
    140,555,432.67x = 193,968,478.02 × 80,983,805.28
  4. Step 4: Simplify right side
    140,555,432.67x = 15,708,305,454,429,642
  5. Step 5: Solve for x
    x = 15,708,305,454,429,642/140,555,432.67
  6. Step 6: Final answer
    x = 111,758,792.64

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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.