Home / 140,963,794.88-211,653,257.45-78,836,830.11

Finding the Fourth Proportional to 140,963,794.88, 211,653,257.45 and 78,836,830.11

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Solution

The fourth proportional to 140,963,794.88, 211,653,257.45 and 78,836,830.11 is: 118,371,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,963,794.88 : 211,653,257.45 = 78,836,830.11 : x
  2. Step 2: Convert to fraction form
    140,963,794.88/211,653,257.45 = 78,836,830.11/x
  3. Step 3: Cross multiply
    140,963,794.88x = 211,653,257.45 × 78,836,830.11
  4. Step 4: Simplify right side
    140,963,794.88x = 16,686,071,899,419,556
  5. Step 5: Solve for x
    x = 16,686,071,899,419,556/140,963,794.88
  6. Step 6: Final answer
    x = 118,371,330.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.