Home / 19,129,761.90-28,689,083.71-7,455,535.11

Finding the Fourth Proportional to 19,129,761.90, 28,689,083.71 and 7,455,535.11

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Solution

The fourth proportional to 19,129,761.90, 28,689,083.71 and 7,455,535.11 is: 11,181,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129,761.90 : 28,689,083.71 = 7,455,535.11 : x
  2. Step 2: Convert to fraction form
    19,129,761.90/28,689,083.71 = 7,455,535.11/x
  3. Step 3: Cross multiply
    19,129,761.90x = 28,689,083.71 × 7,455,535.11
  4. Step 4: Simplify right side
    19,129,761.90x = 213,892,470,854,995.22
  5. Step 5: Solve for x
    x = 213,892,470,854,995.22/19,129,761.90
  6. Step 6: Final answer
    x = 11,181,136.07

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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.