Home / 12,776,604.60-19,164,906.90-11,852,815.80

Finding the Fourth Proportional to 12,776,604.60, 19,164,906.90 and 11,852,815.80

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Solution

The fourth proportional to 12,776,604.60, 19,164,906.90 and 11,852,815.80 is: 17,779,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,604.60 : 19,164,906.90 = 11,852,815.80 : x
  2. Step 2: Convert to fraction form
    12,776,604.60/19,164,906.90 = 11,852,815.80/x
  3. Step 3: Cross multiply
    12,776,604.60x = 19,164,906.90 × 11,852,815.80
  4. Step 4: Simplify right side
    12,776,604.60x = 227,158,111,309,849.03
  5. Step 5: Solve for x
    x = 227,158,111,309,849.03/12,776,604.60
  6. Step 6: Final answer
    x = 17,779,223.70

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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.