Home / 20,903,478.48-31,355,532.90-7,257,058.20

Finding the Fourth Proportional to 20,903,478.48, 31,355,532.90 and 7,257,058.20

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Solution

The fourth proportional to 20,903,478.48, 31,355,532.90 and 7,257,058.20 is: 10,885,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903,478.48 : 31,355,532.90 = 7,257,058.20 : x
  2. Step 2: Convert to fraction form
    20,903,478.48/31,355,532.90 = 7,257,058.20/x
  3. Step 3: Cross multiply
    20,903,478.48x = 31,355,532.90 × 7,257,058.20
  4. Step 4: Simplify right side
    20,903,478.48x = 227,548,927,147,314.78
  5. Step 5: Solve for x
    x = 227,548,927,147,314.78/20,903,478.48
  6. Step 6: Final answer
    x = 10,885,696.72

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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.