Home / 12,960,067.60-19,440,101.40-8,928,989.20

Finding the Fourth Proportional to 12,960,067.60, 19,440,101.40 and 8,928,989.20

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Solution

The fourth proportional to 12,960,067.60, 19,440,101.40 and 8,928,989.20 is: 13,393,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,067.60 : 19,440,101.40 = 8,928,989.20 : x
  2. Step 2: Convert to fraction form
    12,960,067.60/19,440,101.40 = 8,928,989.20/x
  3. Step 3: Cross multiply
    12,960,067.60x = 19,440,101.40 × 8,928,989.20
  4. Step 4: Simplify right side
    12,960,067.60x = 173,580,455,447,504.84
  5. Step 5: Solve for x
    x = 173,580,455,447,504.84/12,960,067.60
  6. Step 6: Final answer
    x = 13,393,483.80

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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.