Home / 21,032,429.60-31,566,359.10-8,262,099.20

Finding the Fourth Proportional to 21,032,429.60, 31,566,359.10 and 8,262,099.20

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Solution

The fourth proportional to 21,032,429.60, 31,566,359.10 and 8,262,099.20 is: 12,400,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,429.60 : 31,566,359.10 = 8,262,099.20 : x
  2. Step 2: Convert to fraction form
    21,032,429.60/31,566,359.10 = 8,262,099.20/x
  3. Step 3: Cross multiply
    21,032,429.60x = 31,566,359.10 × 8,262,099.20
  4. Step 4: Simplify right side
    21,032,429.60x = 260,804,390,267,022.75
  5. Step 5: Solve for x
    x = 260,804,390,267,022.75/21,032,429.60
  6. Step 6: Final answer
    x = 12,400,107.61

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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.