Home / 278,615,017.79-384,465,870.46-164,024,216.74

Finding the Fourth Proportional to 278,615,017.79, 384,465,870.46 and 164,024,216.74

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Solution

The fourth proportional to 278,615,017.79, 384,465,870.46 and 164,024,216.74 is: 226,339,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,615,017.79 : 384,465,870.46 = 164,024,216.74 : x
  2. Step 2: Convert to fraction form
    278,615,017.79/384,465,870.46 = 164,024,216.74/x
  3. Step 3: Cross multiply
    278,615,017.79x = 384,465,870.46 × 164,024,216.74
  4. Step 4: Simplify right side
    278,615,017.79x = 63,061,713,265,463,800
  5. Step 5: Solve for x
    x = 63,061,713,265,463,800/278,615,017.79
  6. Step 6: Final answer
    x = 226,339,964.61

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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.