Home / 72,744,499.69-100,518,724.34-51,800,170.66

Finding the Fourth Proportional to 72,744,499.69, 100,518,724.34 and 51,800,170.66

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Solution

The fourth proportional to 72,744,499.69, 100,518,724.34 and 51,800,170.66 is: 71,577,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,744,499.69 : 100,518,724.34 = 51,800,170.66 : x
  2. Step 2: Convert to fraction form
    72,744,499.69/100,518,724.34 = 51,800,170.66/x
  3. Step 3: Cross multiply
    72,744,499.69x = 100,518,724.34 × 51,800,170.66
  4. Step 4: Simplify right side
    72,744,499.69x = 5,206,887,075,398,395
  5. Step 5: Solve for x
    x = 5,206,887,075,398,395/72,744,499.69
  6. Step 6: Final answer
    x = 71,577,742.62

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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.