Home / 393,270,289.48-542,714,095.17-214,655,790.61

Finding the Fourth Proportional to 393,270,289.48, 542,714,095.17 and 214,655,790.61

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Solution

The fourth proportional to 393,270,289.48, 542,714,095.17 and 214,655,790.61 is: 296,225,589.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,270,289.48 : 542,714,095.17 = 214,655,790.61 : x
  2. Step 2: Convert to fraction form
    393,270,289.48/542,714,095.17 = 214,655,790.61/x
  3. Step 3: Cross multiply
    393,270,289.48x = 542,714,095.17 × 214,655,790.61
  4. Step 4: Simplify right side
    393,270,289.48x = 116,496,723,170,120,272
  5. Step 5: Solve for x
    x = 116,496,723,170,120,272/393,270,289.48
  6. Step 6: Final answer
    x = 296,225,589.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.