Home / 15,428,425.44-21,291,114.01-8,458,988.10

Finding the Fourth Proportional to 15,428,425.44, 21,291,114.01 and 8,458,988.10

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Solution

The fourth proportional to 15,428,425.44, 21,291,114.01 and 8,458,988.10 is: 11,673,341.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428,425.44 : 21,291,114.01 = 8,458,988.10 : x
  2. Step 2: Convert to fraction form
    15,428,425.44/21,291,114.01 = 8,458,988.10/x
  3. Step 3: Cross multiply
    15,428,425.44x = 21,291,114.01 × 8,458,988.10
  4. Step 4: Simplify right side
    15,428,425.44x = 180,101,280,080,967.22
  5. Step 5: Solve for x
    x = 180,101,280,080,967.22/15,428,425.44
  6. Step 6: Final answer
    x = 11,673,341.57

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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.