Home / 84,463,274.40-126,694,911.60-66,323,421.60

Finding the Fourth Proportional to 84,463,274.40, 126,694,911.60 and 66,323,421.60

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Solution

The fourth proportional to 84,463,274.40, 126,694,911.60 and 66,323,421.60 is: 99,485,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,463,274.40 : 126,694,911.60 = 66,323,421.60 : x
  2. Step 2: Convert to fraction form
    84,463,274.40/126,694,911.60 = 66,323,421.60/x
  3. Step 3: Cross multiply
    84,463,274.40x = 126,694,911.60 × 66,323,421.60
  4. Step 4: Simplify right side
    84,463,274.40x = 8,402,840,036,621,530
  5. Step 5: Solve for x
    x = 8,402,840,036,621,530/84,463,274.40
  6. Step 6: Final answer
    x = 99,485,132.40

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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.