Home / 13,172,338.92-18,178,042.95-7,211,646.28

Finding the Fourth Proportional to 13,172,338.92, 18,178,042.95 and 7,211,646.28

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Solution

The fourth proportional to 13,172,338.92, 18,178,042.95 and 7,211,646.28 is: 9,952,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,338.92 : 18,178,042.95 = 7,211,646.28 : x
  2. Step 2: Convert to fraction form
    13,172,338.92/18,178,042.95 = 7,211,646.28/x
  3. Step 3: Cross multiply
    13,172,338.92x = 18,178,042.95 × 7,211,646.28
  4. Step 4: Simplify right side
    13,172,338.92x = 131,093,615,803,563.92
  5. Step 5: Solve for x
    x = 131,093,615,803,563.92/13,172,338.92
  6. Step 6: Final answer
    x = 9,952,189.71

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1.5x scale

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.