Home / 12,960,104.40-19,430,825.40-7,282,069.20

Finding the Fourth Proportional to 12,960,104.40, 19,430,825.40 and 7,282,069.20

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Solution

The fourth proportional to 12,960,104.40, 19,430,825.40 and 7,282,069.20 is: 10,917,860.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,104.40 : 19,430,825.40 = 7,282,069.20 : x
  2. Step 2: Convert to fraction form
    12,960,104.40/19,430,825.40 = 7,282,069.20/x
  3. Step 3: Cross multiply
    12,960,104.40x = 19,430,825.40 × 7,282,069.20
  4. Step 4: Simplify right side
    12,960,104.40x = 141,496,615,175,917.69
  5. Step 5: Solve for x
    x = 141,496,615,175,917.69/12,960,104.40
  6. Step 6: Final answer
    x = 10,917,860.75

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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.