Home / 66,445,421.70-99,668,132.55-50,321,108.10

Finding the Fourth Proportional to 66,445,421.70, 99,668,132.55 and 50,321,108.10

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Solution

The fourth proportional to 66,445,421.70, 99,668,132.55 and 50,321,108.10 is: 75,481,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445,421.70 : 99,668,132.55 = 50,321,108.10 : x
  2. Step 2: Convert to fraction form
    66,445,421.70/99,668,132.55 = 50,321,108.10/x
  3. Step 3: Cross multiply
    66,445,421.70x = 99,668,132.55 × 50,321,108.10
  4. Step 4: Simplify right side
    66,445,421.70x = 5,015,410,872,173,679
  5. Step 5: Solve for x
    x = 5,015,410,872,173,679/66,445,421.70
  6. Step 6: Final answer
    x = 75,481,662.15

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Double scale
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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.