Home / 12,790,191.60-19,160,404.20-7,726,460.40

Finding the Fourth Proportional to 12,790,191.60, 19,160,404.20 and 7,726,460.40

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Solution

The fourth proportional to 12,790,191.60, 19,160,404.20 and 7,726,460.40 is: 11,574,658.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,191.60 : 19,160,404.20 = 7,726,460.40 : x
  2. Step 2: Convert to fraction form
    12,790,191.60/19,160,404.20 = 7,726,460.40/x
  3. Step 3: Cross multiply
    12,790,191.60x = 19,160,404.20 × 7,726,460.40
  4. Step 4: Simplify right side
    12,790,191.60x = 148,042,104,299,293.69
  5. Step 5: Solve for x
    x = 148,042,104,299,293.69/12,790,191.60
  6. Step 6: Final answer
    x = 11,574,658.84

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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.