Home / 278,615,019.84-384,465,873.28-164,024,218.79

Finding the Fourth Proportional to 278,615,019.84, 384,465,873.28 and 164,024,218.79

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Solution

The fourth proportional to 278,615,019.84, 384,465,873.28 and 164,024,218.79 is: 226,339,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,615,019.84 : 384,465,873.28 = 164,024,218.79 : x
  2. Step 2: Convert to fraction form
    278,615,019.84/384,465,873.28 = 164,024,218.79/x
  3. Step 3: Cross multiply
    278,615,019.84x = 384,465,873.28 × 164,024,218.79
  4. Step 4: Simplify right side
    278,615,019.84x = 63,061,714,516,167,128
  5. Step 5: Solve for x
    x = 63,061,714,516,167,128/278,615,019.84
  6. Step 6: Final answer
    x = 226,339,967.43

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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.