Home / 42,754,705.20-64,132,057.80-12,463,556.40

Finding the Fourth Proportional to 42,754,705.20, 64,132,057.80 and 12,463,556.40

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Solution

The fourth proportional to 42,754,705.20, 64,132,057.80 and 12,463,556.40 is: 18,695,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,754,705.20 : 64,132,057.80 = 12,463,556.40 : x
  2. Step 2: Convert to fraction form
    42,754,705.20/64,132,057.80 = 12,463,556.40/x
  3. Step 3: Cross multiply
    42,754,705.20x = 64,132,057.80 × 12,463,556.40
  4. Step 4: Simplify right side
    42,754,705.20x = 799,313,519,438,359.88
  5. Step 5: Solve for x
    x = 799,313,519,438,359.88/42,754,705.20
  6. Step 6: Final answer
    x = 18,695,334.60

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1.5x scale

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.