Home / 15,455,390.80-21,327,369.32-8,579,329.36

Finding the Fourth Proportional to 15,455,390.80, 21,327,369.32 and 8,579,329.36

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Solution

The fourth proportional to 15,455,390.80, 21,327,369.32 and 8,579,329.36 is: 11,838,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455,390.80 : 21,327,369.32 = 8,579,329.36 : x
  2. Step 2: Convert to fraction form
    15,455,390.80/21,327,369.32 = 8,579,329.36/x
  3. Step 3: Cross multiply
    15,455,390.80x = 21,327,369.32 × 8,579,329.36
  4. Step 4: Simplify right side
    15,455,390.80x = 182,974,525,778,639.22
  5. Step 5: Solve for x
    x = 182,974,525,778,639.22/15,455,390.80
  6. Step 6: Final answer
    x = 11,838,880.57

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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.