Home / 66,439,564.40-99,659,346.60-65,991,666.80

Finding the Fourth Proportional to 66,439,564.40, 99,659,346.60 and 65,991,666.80

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Solution

The fourth proportional to 66,439,564.40, 99,659,346.60 and 65,991,666.80 is: 98,987,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439,564.40 : 99,659,346.60 = 65,991,666.80 : x
  2. Step 2: Convert to fraction form
    66,439,564.40/99,659,346.60 = 65,991,666.80/x
  3. Step 3: Cross multiply
    66,439,564.40x = 99,659,346.60 × 65,991,666.80
  4. Step 4: Simplify right side
    66,439,564.40x = 6,576,686,394,332,912
  5. Step 5: Solve for x
    x = 6,576,686,394,332,912/66,439,564.40
  6. Step 6: Final answer
    x = 98,987,500.20

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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.