Home / 18,826,919.82-28,255,511.04-9,731,681.63

Finding the Fourth Proportional to 18,826,919.82, 28,255,511.04 and 9,731,681.63

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Solution

The fourth proportional to 18,826,919.82, 28,255,511.04 and 9,731,681.63 is: 14,605,343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826,919.82 : 28,255,511.04 = 9,731,681.63 : x
  2. Step 2: Convert to fraction form
    18,826,919.82/28,255,511.04 = 9,731,681.63/x
  3. Step 3: Cross multiply
    18,826,919.82x = 28,255,511.04 × 9,731,681.63
  4. Step 4: Simplify right side
    18,826,919.82x = 274,973,637,662,417
  5. Step 5: Solve for x
    x = 274,973,637,662,417/18,826,919.82
  6. Step 6: Final answer
    x = 14,605,343.85

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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.