Home / 19,218,988.82-26,551,012.30-12,619,235.18

Finding the Fourth Proportional to 19,218,988.82, 26,551,012.30 and 12,619,235.18

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Solution

The fourth proportional to 19,218,988.82, 26,551,012.30 and 12,619,235.18 is: 17,433,459.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218,988.82 : 26,551,012.30 = 12,619,235.18 : x
  2. Step 2: Convert to fraction form
    19,218,988.82/26,551,012.30 = 12,619,235.18/x
  3. Step 3: Cross multiply
    19,218,988.82x = 26,551,012.30 × 12,619,235.18
  4. Step 4: Simplify right side
    19,218,988.82x = 335,053,468,480,772.69
  5. Step 5: Solve for x
    x = 335,053,468,480,772.69/19,218,988.82
  6. Step 6: Final answer
    x = 17,433,459.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.