Home / 66,430,243.35-99,645,365.03-42,276,249.90

Finding the Fourth Proportional to 66,430,243.35, 99,645,365.03 and 42,276,249.90

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Solution

The fourth proportional to 66,430,243.35, 99,645,365.03 and 42,276,249.90 is: 63,414,374.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,243.35 : 99,645,365.03 = 42,276,249.90 : x
  2. Step 2: Convert to fraction form
    66,430,243.35/99,645,365.03 = 42,276,249.90/x
  3. Step 3: Cross multiply
    66,430,243.35x = 99,645,365.03 × 42,276,249.90
  4. Step 4: Simplify right side
    66,430,243.35x = 4,212,632,353,173,620
  5. Step 5: Solve for x
    x = 4,212,632,353,173,620/66,430,243.35
  6. Step 6: Final answer
    x = 63,414,374.85

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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.