Home / 15,621,945.94-21,558,143.64-8,746,542.82

Finding the Fourth Proportional to 15,621,945.94, 21,558,143.64 and 8,746,542.82

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Solution

The fourth proportional to 15,621,945.94, 21,558,143.64 and 8,746,542.82 is: 12,070,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621,945.94 : 21,558,143.64 = 8,746,542.82 : x
  2. Step 2: Convert to fraction form
    15,621,945.94/21,558,143.64 = 8,746,542.82/x
  3. Step 3: Cross multiply
    15,621,945.94x = 21,558,143.64 × 8,746,542.82
  4. Step 4: Simplify right side
    15,621,945.94x = 188,559,226,466,970.69
  5. Step 5: Solve for x
    x = 188,559,226,466,970.69/15,621,945.94
  6. Step 6: Final answer
    x = 12,070,149.72

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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.