Home / 31,456,801.06-43,401,613.08-20,288,568.40

Finding the Fourth Proportional to 31,456,801.06, 43,401,613.08 and 20,288,568.40

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Solution

The fourth proportional to 31,456,801.06, 43,401,613.08 and 20,288,568.40 is: 27,992,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456,801.06 : 43,401,613.08 = 20,288,568.40 : x
  2. Step 2: Convert to fraction form
    31,456,801.06/43,401,613.08 = 20,288,568.40/x
  3. Step 3: Cross multiply
    31,456,801.06x = 43,401,613.08 × 20,288,568.40
  4. Step 4: Simplify right side
    31,456,801.06x = 880,556,595,643,914.62
  5. Step 5: Solve for x
    x = 880,556,595,643,914.62/31,456,801.06
  6. Step 6: Final answer
    x = 27,992,566.50

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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.