Home / 15,621,910.10-21,557,995.17-8,746,638.20

Finding the Fourth Proportional to 15,621,910.10, 21,557,995.17 and 8,746,638.20

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Solution

The fourth proportional to 15,621,910.10, 21,557,995.17 and 8,746,638.20 is: 12,070,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621,910.10 : 21,557,995.17 = 8,746,638.20 : x
  2. Step 2: Convert to fraction form
    15,621,910.10/21,557,995.17 = 8,746,638.20/x
  3. Step 3: Cross multiply
    15,621,910.10x = 21,557,995.17 × 8,746,638.20
  4. Step 4: Simplify right side
    15,621,910.10x = 188,559,984,009,590.12
  5. Step 5: Solve for x
    x = 188,559,984,009,590.12/15,621,910.10
  6. Step 6: Final answer
    x = 12,070,225.91

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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.