Home / 19,117,123.20-28,667,520-8,875,664.64

Finding the Fourth Proportional to 19,117,123.20, 28,667,520 and 8,875,664.64

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Solution

The fourth proportional to 19,117,123.20, 28,667,520 and 8,875,664.64 is: 13,309,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117,123.20 : 28,667,520 = 8,875,664.64 : x
  2. Step 2: Convert to fraction form
    19,117,123.20/28,667,520 = 8,875,664.64/x
  3. Step 3: Cross multiply
    19,117,123.20x = 28,667,520 × 8,875,664.64
  4. Step 4: Simplify right side
    19,117,123.20x = 254,443,293,580,492.81
  5. Step 5: Solve for x
    x = 254,443,293,580,492.81/19,117,123.20
  6. Step 6: Final answer
    x = 13,309,706.22

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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.