Home / 20,903,456.07-31,355,499.24-7,257,035.79

Finding the Fourth Proportional to 20,903,456.07, 31,355,499.24 and 7,257,035.79

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Solution

The fourth proportional to 20,903,456.07, 31,355,499.24 and 7,257,035.79 is: 10,885,663.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903,456.07 : 31,355,499.24 = 7,257,035.79 : x
  2. Step 2: Convert to fraction form
    20,903,456.07/31,355,499.24 = 7,257,035.79/x
  3. Step 3: Cross multiply
    20,903,456.07x = 31,355,499.24 × 7,257,035.79
  4. Step 4: Simplify right side
    20,903,456.07x = 227,547,980,197,997.78
  5. Step 5: Solve for x
    x = 227,547,980,197,997.78/20,903,456.07
  6. Step 6: Final answer
    x = 10,885,663.09

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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.