Home / 21,280,778.28-31,925,651.44-6,902,725.10

Finding the Fourth Proportional to 21,280,778.28, 31,925,651.44 and 6,902,725.10

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Solution

The fourth proportional to 21,280,778.28, 31,925,651.44 and 6,902,725.10 is: 10,355,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,778.28 : 31,925,651.44 = 6,902,725.10 : x
  2. Step 2: Convert to fraction form
    21,280,778.28/31,925,651.44 = 6,902,725.10/x
  3. Step 3: Cross multiply
    21,280,778.28x = 31,925,651.44 × 6,902,725.10
  4. Step 4: Simplify right side
    21,280,778.28x = 220,373,995,528,739.16
  5. Step 5: Solve for x
    x = 220,373,995,528,739.16/21,280,778.28
  6. Step 6: Final answer
    x = 10,355,542.11

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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.