Home / 215,100,719,987.16-296,865,023,043.82-122,424,107,461.50

Finding the Fourth Proportional to 215,100,719,987.16, 296,865,023,043.82 and 122,424,107,461.50

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Solution

The fourth proportional to 215,100,719,987.16, 296,865,023,043.82 and 122,424,107,461.50 is: 168,960,082,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,100,719,987.16 : 296,865,023,043.82 = 122,424,107,461.50 : x
  2. Step 2: Convert to fraction form
    215,100,719,987.16/296,865,023,043.82 = 122,424,107,461.50/x
  3. Step 3: Cross multiply
    215,100,719,987.16x = 296,865,023,043.82 × 122,424,107,461.50
  4. Step 4: Simplify right side
    215,100,719,987.16x = 36,343,435,482,677,295,185,920
  5. Step 5: Solve for x
    x = 36,343,435,482,677,295,185,920/215,100,719,987.16
  6. Step 6: Final answer
    x = 168,960,082,908.36

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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.