Home / 66,430,430.20-99,645,645.30-60,372,002.80

Finding the Fourth Proportional to 66,430,430.20, 99,645,645.30 and 60,372,002.80

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Solution

The fourth proportional to 66,430,430.20, 99,645,645.30 and 60,372,002.80 is: 90,558,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,430.20 : 99,645,645.30 = 60,372,002.80 : x
  2. Step 2: Convert to fraction form
    66,430,430.20/99,645,645.30 = 60,372,002.80/x
  3. Step 3: Cross multiply
    66,430,430.20x = 99,645,645.30 × 60,372,002.80
  4. Step 4: Simplify right side
    66,430,430.20x = 6,015,807,177,059,406
  5. Step 5: Solve for x
    x = 6,015,807,177,059,406/66,430,430.20
  6. Step 6: Final answer
    x = 90,558,004.20

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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.