Home / 15,064,684.78-20,789,117.31-8,188,757.74

Finding the Fourth Proportional to 15,064,684.78, 20,789,117.31 and 8,188,757.74

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Solution

The fourth proportional to 15,064,684.78, 20,789,117.31 and 8,188,757.74 is: 11,300,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064,684.78 : 20,789,117.31 = 8,188,757.74 : x
  2. Step 2: Convert to fraction form
    15,064,684.78/20,789,117.31 = 8,188,757.74/x
  3. Step 3: Cross multiply
    15,064,684.78x = 20,789,117.31 × 8,188,757.74
  4. Step 4: Simplify right side
    15,064,684.78x = 170,237,045,280,030.47
  5. Step 5: Solve for x
    x = 170,237,045,280,030.47/15,064,684.78
  6. Step 6: Final answer
    x = 11,300,405.40

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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.