Home / 15,418,899.77-21,280,347.69-8,891,254.26

Finding the Fourth Proportional to 15,418,899.77, 21,280,347.69 and 8,891,254.26

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Solution

The fourth proportional to 15,418,899.77, 21,280,347.69 and 8,891,254.26 is: 12,271,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418,899.77 : 21,280,347.69 = 8,891,254.26 : x
  2. Step 2: Convert to fraction form
    15,418,899.77/21,280,347.69 = 8,891,254.26/x
  3. Step 3: Cross multiply
    15,418,899.77x = 21,280,347.69 × 8,891,254.26
  4. Step 4: Simplify right side
    15,418,899.77x = 189,208,982,052,993.66
  5. Step 5: Solve for x
    x = 189,208,982,052,993.66/15,418,899.77
  6. Step 6: Final answer
    x = 12,271,237.57

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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.