Home / 84,248,645.40-126,372,968.10-47,842,968.60

Finding the Fourth Proportional to 84,248,645.40, 126,372,968.10 and 47,842,968.60

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Solution

The fourth proportional to 84,248,645.40, 126,372,968.10 and 47,842,968.60 is: 71,764,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,645.40 : 126,372,968.10 = 47,842,968.60 : x
  2. Step 2: Convert to fraction form
    84,248,645.40/126,372,968.10 = 47,842,968.60/x
  3. Step 3: Cross multiply
    84,248,645.40x = 126,372,968.10 × 47,842,968.60
  4. Step 4: Simplify right side
    84,248,645.40x = 6,046,057,944,697,102
  5. Step 5: Solve for x
    x = 6,046,057,944,697,102/84,248,645.40
  6. Step 6: Final answer
    x = 71,764,452.90

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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.