Home / 19,008,005.10-28,519,006.05-7,656,600.30

Finding the Fourth Proportional to 19,008,005.10, 28,519,006.05 and 7,656,600.30

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Solution

The fourth proportional to 19,008,005.10, 28,519,006.05 and 7,656,600.30 is: 11,487,719.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,005.10 : 28,519,006.05 = 7,656,600.30 : x
  2. Step 2: Convert to fraction form
    19,008,005.10/28,519,006.05 = 7,656,600.30/x
  3. Step 3: Cross multiply
    19,008,005.10x = 28,519,006.05 × 7,656,600.30
  4. Step 4: Simplify right side
    19,008,005.10x = 218,358,630,278,131.81
  5. Step 5: Solve for x
    x = 218,358,630,278,131.81/19,008,005.10
  6. Step 6: Final answer
    x = 11,487,719.47

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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.