Home / 15,854,938.33-21,879,442.74-9,328,990.48

Finding the Fourth Proportional to 15,854,938.33, 21,879,442.74 and 9,328,990.48

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Solution

The fourth proportional to 15,854,938.33, 21,879,442.74 and 9,328,990.48 is: 12,873,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854,938.33 : 21,879,442.74 = 9,328,990.48 : x
  2. Step 2: Convert to fraction form
    15,854,938.33/21,879,442.74 = 9,328,990.48/x
  3. Step 3: Cross multiply
    15,854,938.33x = 21,879,442.74 × 9,328,990.48
  4. Step 4: Simplify right side
    15,854,938.33x = 204,113,113,029,165.12
  5. Step 5: Solve for x
    x = 204,113,113,029,165.12/15,854,938.33
  6. Step 6: Final answer
    x = 12,873,787.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.