Home / 15,420,947.34-21,281,032.35-8,545,544.22

Finding the Fourth Proportional to 15,420,947.34, 21,281,032.35 and 8,545,544.22

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Solution

The fourth proportional to 15,420,947.34, 21,281,032.35 and 8,545,544.22 is: 11,792,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,947.34 : 21,281,032.35 = 8,545,544.22 : x
  2. Step 2: Convert to fraction form
    15,420,947.34/21,281,032.35 = 8,545,544.22/x
  3. Step 3: Cross multiply
    15,420,947.34x = 21,281,032.35 × 8,545,544.22
  4. Step 4: Simplify right side
    15,420,947.34x = 181,858,002,994,175.53
  5. Step 5: Solve for x
    x = 181,858,002,994,175.53/15,420,947.34
  6. Step 6: Final answer
    x = 11,792,920.30

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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.