Home / 10,285,849.80-15,428,774.70-8,618,675.40

Finding the Fourth Proportional to 10,285,849.80, 15,428,774.70 and 8,618,675.40

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Solution

The fourth proportional to 10,285,849.80, 15,428,774.70 and 8,618,675.40 is: 12,928,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285,849.80 : 15,428,774.70 = 8,618,675.40 : x
  2. Step 2: Convert to fraction form
    10,285,849.80/15,428,774.70 = 8,618,675.40/x
  3. Step 3: Cross multiply
    10,285,849.80x = 15,428,774.70 × 8,618,675.40
  4. Step 4: Simplify right side
    10,285,849.80x = 132,975,600,959,032.38
  5. Step 5: Solve for x
    x = 132,975,600,959,032.38/10,285,849.80
  6. Step 6: Final answer
    x = 12,928,013.10

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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.