Home / 219,877,686.90-329,816,530.35-168,221,621.70

Finding the Fourth Proportional to 219,877,686.90, 329,816,530.35 and 168,221,621.70

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Solution

The fourth proportional to 219,877,686.90, 329,816,530.35 and 168,221,621.70 is: 252,332,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,877,686.90 : 329,816,530.35 = 168,221,621.70 : x
  2. Step 2: Convert to fraction form
    219,877,686.90/329,816,530.35 = 168,221,621.70/x
  3. Step 3: Cross multiply
    219,877,686.90x = 329,816,530.35 × 168,221,621.70
  4. Step 4: Simplify right side
    219,877,686.90x = 55,482,271,598,944,272
  5. Step 5: Solve for x
    x = 55,482,271,598,944,272/219,877,686.90
  6. Step 6: Final answer
    x = 252,332,432.55

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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.