Home / 12,788,159.09-19,195,893.95-5,505,223.50

Finding the Fourth Proportional to 12,788,159.09, 19,195,893.95 and 5,505,223.50

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Solution

The fourth proportional to 12,788,159.09, 19,195,893.95 and 5,505,223.50 is: 8,263,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,159.09 : 19,195,893.95 = 5,505,223.50 : x
  2. Step 2: Convert to fraction form
    12,788,159.09/19,195,893.95 = 5,505,223.50/x
  3. Step 3: Cross multiply
    12,788,159.09x = 19,195,893.95 × 5,505,223.50
  4. Step 4: Simplify right side
    12,788,159.09x = 105,677,686,449,521.70
  5. Step 5: Solve for x
    x = 105,677,686,449,521.70/12,788,159.09
  6. Step 6: Final answer
    x = 8,263,713.78

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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.