Home / 12,711,498.60-19,042,364.70-7,647,767.40

Finding the Fourth Proportional to 12,711,498.60, 19,042,364.70 and 7,647,767.40

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Solution

The fourth proportional to 12,711,498.60, 19,042,364.70 and 7,647,767.40 is: 11,456,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711,498.60 : 19,042,364.70 = 7,647,767.40 : x
  2. Step 2: Convert to fraction form
    12,711,498.60/19,042,364.70 = 7,647,767.40/x
  3. Step 3: Cross multiply
    12,711,498.60x = 19,042,364.70 × 7,647,767.40
  4. Step 4: Simplify right side
    12,711,498.60x = 145,631,575,971,570.78
  5. Step 5: Solve for x
    x = 145,631,575,971,570.78/12,711,498.60
  6. Step 6: Final answer
    x = 11,456,680.33

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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.