Home / 12,913,166.54-17,818,851.16-7,950,819.80

Finding the Fourth Proportional to 12,913,166.54, 17,818,851.16 and 7,950,819.80

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Solution

The fourth proportional to 12,913,166.54, 17,818,851.16 and 7,950,819.80 is: 10,971,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,166.54 : 17,818,851.16 = 7,950,819.80 : x
  2. Step 2: Convert to fraction form
    12,913,166.54/17,818,851.16 = 7,950,819.80/x
  3. Step 3: Cross multiply
    12,913,166.54x = 17,818,851.16 × 7,950,819.80
  4. Step 4: Simplify right side
    12,913,166.54x = 141,674,474,616,180.97
  5. Step 5: Solve for x
    x = 141,674,474,616,180.97/12,913,166.54
  6. Step 6: Final answer
    x = 10,971,319.40

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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.