Home / 19,218,989.81-26,551,013.69-12,619,236.17

Finding the Fourth Proportional to 19,218,989.81, 26,551,013.69 and 12,619,236.17

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Solution

The fourth proportional to 19,218,989.81, 26,551,013.69 and 12,619,236.17 is: 17,433,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218,989.81 : 26,551,013.69 = 12,619,236.17 : x
  2. Step 2: Convert to fraction form
    19,218,989.81/26,551,013.69 = 12,619,236.17/x
  3. Step 3: Cross multiply
    19,218,989.81x = 26,551,013.69 × 12,619,236.17
  4. Step 4: Simplify right side
    19,218,989.81x = 335,053,512,307,013.19
  5. Step 5: Solve for x
    x = 335,053,512,307,013.19/19,218,989.81
  6. Step 6: Final answer
    x = 17,433,461.16

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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.