Home / 323,714,971.20-485,572,456.80-289,702,747.20

Finding the Fourth Proportional to 323,714,971.20, 485,572,456.80 and 289,702,747.20

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Solution

The fourth proportional to 323,714,971.20, 485,572,456.80 and 289,702,747.20 is: 434,554,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,714,971.20 : 485,572,456.80 = 289,702,747.20 : x
  2. Step 2: Convert to fraction form
    323,714,971.20/485,572,456.80 = 289,702,747.20/x
  3. Step 3: Cross multiply
    323,714,971.20x = 485,572,456.80 × 289,702,747.20
  4. Step 4: Simplify right side
    323,714,971.20x = 140,671,674,699,613,312
  5. Step 5: Solve for x
    x = 140,671,674,699,613,312/323,714,971.20
  6. Step 6: Final answer
    x = 434,554,120.80

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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.