Home / 15,064,683.78-20,789,115.93-8,188,756.74

Finding the Fourth Proportional to 15,064,683.78, 20,789,115.93 and 8,188,756.74

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Solution

The fourth proportional to 15,064,683.78, 20,789,115.93 and 8,188,756.74 is: 11,300,404.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064,683.78 : 20,789,115.93 = 8,188,756.74 : x
  2. Step 2: Convert to fraction form
    15,064,683.78/20,789,115.93 = 8,188,756.74/x
  3. Step 3: Cross multiply
    15,064,683.78x = 20,789,115.93 × 8,188,756.74
  4. Step 4: Simplify right side
    15,064,683.78x = 170,237,013,190,428.88
  5. Step 5: Solve for x
    x = 170,237,013,190,428.88/15,064,683.78
  6. Step 6: Final answer
    x = 11,300,404.02

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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.