Home / 330,256,015.20-495,384,022.80-221,416,898.40

Finding the Fourth Proportional to 330,256,015.20, 495,384,022.80 and 221,416,898.40

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Solution

The fourth proportional to 330,256,015.20, 495,384,022.80 and 221,416,898.40 is: 332,125,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,256,015.20 : 495,384,022.80 = 221,416,898.40 : x
  2. Step 2: Convert to fraction form
    330,256,015.20/495,384,022.80 = 221,416,898.40/x
  3. Step 3: Cross multiply
    330,256,015.20x = 495,384,022.80 × 221,416,898.40
  4. Step 4: Simplify right side
    330,256,015.20x = 109,686,393,845,290,896
  5. Step 5: Solve for x
    x = 109,686,393,845,290,896/330,256,015.20
  6. Step 6: Final answer
    x = 332,125,347.60

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1.5x scale

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.