Home / 15,277,638.66-21,138,657.72-13,321,595.58

Finding the Fourth Proportional to 15,277,638.66, 21,138,657.72 and 13,321,595.58

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Solution

The fourth proportional to 15,277,638.66, 21,138,657.72 and 13,321,595.58 is: 18,432,210.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,277,638.66 : 21,138,657.72 = 13,321,595.58 : x
  2. Step 2: Convert to fraction form
    15,277,638.66/21,138,657.72 = 13,321,595.58/x
  3. Step 3: Cross multiply
    15,277,638.66x = 21,138,657.72 × 13,321,595.58
  4. Step 4: Simplify right side
    15,277,638.66x = 281,600,649,249,884.88
  5. Step 5: Solve for x
    x = 281,600,649,249,884.88/15,277,638.66
  6. Step 6: Final answer
    x = 18,432,210.34

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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.