Home / 70,638,157.12-106,161,176.48-65,734,065.12

Finding the Fourth Proportional to 70,638,157.12, 106,161,176.48 and 65,734,065.12

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Solution

The fourth proportional to 70,638,157.12, 106,161,176.48 and 65,734,065.12 is: 98,790,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,638,157.12 : 106,161,176.48 = 65,734,065.12 : x
  2. Step 2: Convert to fraction form
    70,638,157.12/106,161,176.48 = 65,734,065.12/x
  3. Step 3: Cross multiply
    70,638,157.12x = 106,161,176.48 × 65,734,065.12
  4. Step 4: Simplify right side
    70,638,157.12x = 6,978,405,687,952,132
  5. Step 5: Solve for x
    x = 6,978,405,687,952,132/70,638,157.12
  6. Step 6: Final answer
    x = 98,790,879.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.