Home / 85,920,581.62-118,270,937.73-74,888,161.30

Finding the Fourth Proportional to 85,920,581.62, 118,270,937.73 and 74,888,161.30

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Solution

The fourth proportional to 85,920,581.62, 118,270,937.73 and 74,888,161.30 is: 103,084,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,920,581.62 : 118,270,937.73 = 74,888,161.30 : x
  2. Step 2: Convert to fraction form
    85,920,581.62/118,270,937.73 = 74,888,161.30/x
  3. Step 3: Cross multiply
    85,920,581.62x = 118,270,937.73 × 74,888,161.30
  4. Step 4: Simplify right side
    85,920,581.62x = 8,857,093,061,826,496
  5. Step 5: Solve for x
    x = 8,857,093,061,826,496/85,920,581.62
  6. Step 6: Final answer
    x = 103,084,649.74

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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.