Home / 142,582,440-196,758,675.54-80,701,449.96

Finding the Fourth Proportional to 142,582,440, 196,758,675.54 and 80,701,449.96

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Solution

The fourth proportional to 142,582,440, 196,758,675.54 and 80,701,449.96 is: 111,365,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,582,440 : 196,758,675.54 = 80,701,449.96 : x
  2. Step 2: Convert to fraction form
    142,582,440/196,758,675.54 = 80,701,449.96/x
  3. Step 3: Cross multiply
    142,582,440x = 196,758,675.54 × 80,701,449.96
  4. Step 4: Simplify right side
    142,582,440x = 15,878,710,408,287,184
  5. Step 5: Solve for x
    x = 15,878,710,408,287,184/142,582,440
  6. Step 6: Final answer
    x = 111,365,119.07

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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.