Home / 15,314,128.32-21,132,053.28-9,033,676.80

Finding the Fourth Proportional to 15,314,128.32, 21,132,053.28 and 9,033,676.80

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Solution

The fourth proportional to 15,314,128.32, 21,132,053.28 and 9,033,676.80 is: 12,465,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314,128.32 : 21,132,053.28 = 9,033,676.80 : x
  2. Step 2: Convert to fraction form
    15,314,128.32/21,132,053.28 = 9,033,676.80/x
  3. Step 3: Cross multiply
    15,314,128.32x = 21,132,053.28 × 9,033,676.80
  4. Step 4: Simplify right side
    15,314,128.32x = 190,900,139,451,899.94
  5. Step 5: Solve for x
    x = 190,900,139,451,899.94/15,314,128.32
  6. Step 6: Final answer
    x = 12,465,622.30

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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.