Home / 260,149,126.86-359,012,386.35-142,679,133.90

Finding the Fourth Proportional to 260,149,126.86, 359,012,386.35 and 142,679,133.90

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Solution

The fourth proportional to 260,149,126.86, 359,012,386.35 and 142,679,133.90 is: 196,900,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,149,126.86 : 359,012,386.35 = 142,679,133.90 : x
  2. Step 2: Convert to fraction form
    260,149,126.86/359,012,386.35 = 142,679,133.90/x
  3. Step 3: Cross multiply
    260,149,126.86x = 359,012,386.35 × 142,679,133.90
  4. Step 4: Simplify right side
    260,149,126.86x = 51,223,576,343,790,184
  5. Step 5: Solve for x
    x = 51,223,576,343,790,184/260,149,126.86
  6. Step 6: Final answer
    x = 196,900,819.78

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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.