Home / 15,133,132.80-20,883,666.24-8,257,554.72

Finding the Fourth Proportional to 15,133,132.80, 20,883,666.24 and 8,257,554.72

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Solution

The fourth proportional to 15,133,132.80, 20,883,666.24 and 8,257,554.72 is: 11,395,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133,132.80 : 20,883,666.24 = 8,257,554.72 : x
  2. Step 2: Convert to fraction form
    15,133,132.80/20,883,666.24 = 8,257,554.72/x
  3. Step 3: Cross multiply
    15,133,132.80x = 20,883,666.24 × 8,257,554.72
  4. Step 4: Simplify right side
    15,133,132.80x = 172,448,016,731,016.62
  5. Step 5: Solve for x
    x = 172,448,016,731,016.62/15,133,132.80
  6. Step 6: Final answer
    x = 11,395,394.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.