Home / 75,081,937.50-103,613,073.75-40,743,121.50

Finding the Fourth Proportional to 75,081,937.50, 103,613,073.75 and 40,743,121.50

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Solution

The fourth proportional to 75,081,937.50, 103,613,073.75 and 40,743,121.50 is: 56,225,507.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,081,937.50 : 103,613,073.75 = 40,743,121.50 : x
  2. Step 2: Convert to fraction form
    75,081,937.50/103,613,073.75 = 40,743,121.50/x
  3. Step 3: Cross multiply
    75,081,937.50x = 103,613,073.75 × 40,743,121.50
  4. Step 4: Simplify right side
    75,081,937.50x = 4,221,520,052,784,710.50
  5. Step 5: Solve for x
    x = 4,221,520,052,784,710.50/75,081,937.50
  6. Step 6: Final answer
    x = 56,225,507.67

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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.