Home / 65,920,394.90-90,961,782.36-36,143,207.76

Finding the Fourth Proportional to 65,920,394.90, 90,961,782.36 and 36,143,207.76

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Solution

The fourth proportional to 65,920,394.90, 90,961,782.36 and 36,143,207.76 is: 49,873,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920,394.90 : 90,961,782.36 = 36,143,207.76 : x
  2. Step 2: Convert to fraction form
    65,920,394.90/90,961,782.36 = 36,143,207.76/x
  3. Step 3: Cross multiply
    65,920,394.90x = 90,961,782.36 × 36,143,207.76
  4. Step 4: Simplify right side
    65,920,394.90x = 3,287,650,598,057,383
  5. Step 5: Solve for x
    x = 3,287,650,598,057,383/65,920,394.90
  6. Step 6: Final answer
    x = 49,873,041.61

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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.