Home / 220,152,048.30-330,228,072.45-90,693,020.70

Finding the Fourth Proportional to 220,152,048.30, 330,228,072.45 and 90,693,020.70

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Solution

The fourth proportional to 220,152,048.30, 330,228,072.45 and 90,693,020.70 is: 136,039,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,152,048.30 : 330,228,072.45 = 90,693,020.70 : x
  2. Step 2: Convert to fraction form
    220,152,048.30/330,228,072.45 = 90,693,020.70/x
  3. Step 3: Cross multiply
    220,152,048.30x = 330,228,072.45 × 90,693,020.70
  4. Step 4: Simplify right side
    220,152,048.30x = 29,949,381,410,428,948
  5. Step 5: Solve for x
    x = 29,949,381,410,428,948/220,152,048.30
  6. Step 6: Final answer
    x = 136,039,531.05

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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.