Home / 20,724,795.20-31,064,383.20-7,254,689.60

Finding the Fourth Proportional to 20,724,795.20, 31,064,383.20 and 7,254,689.60

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Solution

The fourth proportional to 20,724,795.20, 31,064,383.20 and 7,254,689.60 is: 10,874,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,795.20 : 31,064,383.20 = 7,254,689.60 : x
  2. Step 2: Convert to fraction form
    20,724,795.20/31,064,383.20 = 7,254,689.60/x
  3. Step 3: Cross multiply
    20,724,795.20x = 31,064,383.20 × 7,254,689.60
  4. Step 4: Simplify right side
    20,724,795.20x = 225,362,457,731,454.69
  5. Step 5: Solve for x
    x = 225,362,457,731,454.69/20,724,795.20
  6. Step 6: Final answer
    x = 10,874,049.93

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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.