Home / 15,854,937.70-21,879,441.88-9,328,989.84

Finding the Fourth Proportional to 15,854,937.70, 21,879,441.88 and 9,328,989.84

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Solution

The fourth proportional to 15,854,937.70, 21,879,441.88 and 9,328,989.84 is: 12,873,787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854,937.70 : 21,879,441.88 = 9,328,989.84 : x
  2. Step 2: Convert to fraction form
    15,854,937.70/21,879,441.88 = 9,328,989.84/x
  3. Step 3: Cross multiply
    15,854,937.70x = 21,879,441.88 × 9,328,989.84
  4. Step 4: Simplify right side
    15,854,937.70x = 204,113,091,003,390.50
  5. Step 5: Solve for x
    x = 204,113,091,003,390.50/15,854,937.70
  6. Step 6: Final answer
    x = 12,873,787.01

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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.