Home / 65,920,448.40-90,961,856.16-36,143,261.16

Finding the Fourth Proportional to 65,920,448.40, 90,961,856.16 and 36,143,261.16

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Solution

The fourth proportional to 65,920,448.40, 90,961,856.16 and 36,143,261.16 is: 49,873,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920,448.40 : 90,961,856.16 = 36,143,261.16 : x
  2. Step 2: Convert to fraction form
    65,920,448.40/90,961,856.16 = 36,143,261.16/x
  3. Step 3: Cross multiply
    65,920,448.40x = 90,961,856.16 × 36,143,261.16
  4. Step 4: Simplify right side
    65,920,448.40x = 3,287,658,122,789,234.50
  5. Step 5: Solve for x
    x = 3,287,658,122,789,234.50/65,920,448.40
  6. Step 6: Final answer
    x = 49,873,115.29

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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.