Home / 142,484,042.66-196,628,357.39-77,293,946.66

Finding the Fourth Proportional to 142,484,042.66, 196,628,357.39 and 77,293,946.66

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Solution

The fourth proportional to 142,484,042.66, 196,628,357.39 and 77,293,946.66 is: 106,665,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,484,042.66 : 196,628,357.39 = 77,293,946.66 : x
  2. Step 2: Convert to fraction form
    142,484,042.66/196,628,357.39 = 77,293,946.66/x
  3. Step 3: Cross multiply
    142,484,042.66x = 196,628,357.39 × 77,293,946.66
  4. Step 4: Simplify right side
    142,484,042.66x = 15,198,181,766,576,464
  5. Step 5: Solve for x
    x = 15,198,181,766,576,464/142,484,042.66
  6. Step 6: Final answer
    x = 106,665,851.72

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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.