Home / 142,634,708.20-196,836,682.98-77,444,612.20

Finding the Fourth Proportional to 142,634,708.20, 196,836,682.98 and 77,444,612.20

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Solution

The fourth proportional to 142,634,708.20, 196,836,682.98 and 77,444,612.20 is: 106,873,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,634,708.20 : 196,836,682.98 = 77,444,612.20 : x
  2. Step 2: Convert to fraction form
    142,634,708.20/196,836,682.98 = 77,444,612.20/x
  3. Step 3: Cross multiply
    142,634,708.20x = 196,836,682.98 × 77,444,612.20
  4. Step 4: Simplify right side
    142,634,708.20x = 15,243,940,580,120,440
  5. Step 5: Solve for x
    x = 15,243,940,580,120,440/142,634,708.20
  6. Step 6: Final answer
    x = 106,873,991.42

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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.