Home / 20,683,636.90-31,025,455.35-10,479,969.70

Finding the Fourth Proportional to 20,683,636.90, 31,025,455.35 and 10,479,969.70

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Solution

The fourth proportional to 20,683,636.90, 31,025,455.35 and 10,479,969.70 is: 15,719,954.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683,636.90 : 31,025,455.35 = 10,479,969.70 : x
  2. Step 2: Convert to fraction form
    20,683,636.90/31,025,455.35 = 10,479,969.70/x
  3. Step 3: Cross multiply
    20,683,636.90x = 31,025,455.35 × 10,479,969.70
  4. Step 4: Simplify right side
    20,683,636.90x = 325,145,831,996,702.88
  5. Step 5: Solve for x
    x = 325,145,831,996,702.88/20,683,636.90
  6. Step 6: Final answer
    x = 15,719,954.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.