Home / 215,476,422.96-297,358,371.72-121,391,698.80

Finding the Fourth Proportional to 215,476,422.96, 297,358,371.72 and 121,391,698.80

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Solution

The fourth proportional to 215,476,422.96, 297,358,371.72 and 121,391,698.80 is: 167,521,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,476,422.96 : 297,358,371.72 = 121,391,698.80 : x
  2. Step 2: Convert to fraction form
    215,476,422.96/297,358,371.72 = 121,391,698.80/x
  3. Step 3: Cross multiply
    215,476,422.96x = 297,358,371.72 × 121,391,698.80
  4. Step 4: Simplify right side
    215,476,422.96x = 36,096,837,895,492,680
  5. Step 5: Solve for x
    x = 36,096,837,895,492,680/215,476,422.96
  6. Step 6: Final answer
    x = 167,521,055.90

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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.