Home / 28,134,658.40-38,827,914.90-15,745,993.52

Finding the Fourth Proportional to 28,134,658.40, 38,827,914.90 and 15,745,993.52

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Solution

The fourth proportional to 28,134,658.40, 38,827,914.90 and 15,745,993.52 is: 21,730,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134,658.40 : 38,827,914.90 = 15,745,993.52 : x
  2. Step 2: Convert to fraction form
    28,134,658.40/38,827,914.90 = 15,745,993.52/x
  3. Step 3: Cross multiply
    28,134,658.40x = 38,827,914.90 × 15,745,993.52
  4. Step 4: Simplify right side
    28,134,658.40x = 611,384,096,410,511.38
  5. Step 5: Solve for x
    x = 611,384,096,410,511.38/28,134,658.40
  6. Step 6: Final answer
    x = 21,730,638.69

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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.