Home / 12,776,327.78-19,155,043.71-7,726,515.62

Finding the Fourth Proportional to 12,776,327.78, 19,155,043.71 and 7,726,515.62

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Solution

The fourth proportional to 12,776,327.78, 19,155,043.71 and 7,726,515.62 is: 11,584,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,327.78 : 19,155,043.71 = 7,726,515.62 : x
  2. Step 2: Convert to fraction form
    12,776,327.78/19,155,043.71 = 7,726,515.62/x
  3. Step 3: Cross multiply
    12,776,327.78x = 19,155,043.71 × 7,726,515.62
  4. Step 4: Simplify right side
    12,776,327.78x = 148,001,744,427,097.75
  5. Step 5: Solve for x
    x = 148,001,744,427,097.75/12,776,327.78
  6. Step 6: Final answer
    x = 11,584,059.75

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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.