Home / 278,615,016.79-384,465,869.08-164,024,215.74

Finding the Fourth Proportional to 278,615,016.79, 384,465,869.08 and 164,024,215.74

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Solution

The fourth proportional to 278,615,016.79, 384,465,869.08 and 164,024,215.74 is: 226,339,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,615,016.79 : 384,465,869.08 = 164,024,215.74 : x
  2. Step 2: Convert to fraction form
    278,615,016.79/384,465,869.08 = 164,024,215.74/x
  3. Step 3: Cross multiply
    278,615,016.79x = 384,465,869.08 × 164,024,215.74
  4. Step 4: Simplify right side
    278,615,016.79x = 63,061,712,654,234,456
  5. Step 5: Solve for x
    x = 63,061,712,654,234,456/278,615,016.79
  6. Step 6: Final answer
    x = 226,339,963.23

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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.