Home / 18,898,312.25-26,087,732.33-12,706,947.72

Finding the Fourth Proportional to 18,898,312.25, 26,087,732.33 and 12,706,947.72

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Solution

The fourth proportional to 18,898,312.25, 26,087,732.33 and 12,706,947.72 is: 17,541,008.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898,312.25 : 26,087,732.33 = 12,706,947.72 : x
  2. Step 2: Convert to fraction form
    18,898,312.25/26,087,732.33 = 12,706,947.72/x
  3. Step 3: Cross multiply
    18,898,312.25x = 26,087,732.33 × 12,706,947.72
  4. Step 4: Simplify right side
    18,898,312.25x = 331,495,450,787,129.06
  5. Step 5: Solve for x
    x = 331,495,450,787,129.06/18,898,312.25
  6. Step 6: Final answer
    x = 17,541,008.23

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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.