Home / 220,152,127.80-330,228,191.70-90,693,100.20

Finding the Fourth Proportional to 220,152,127.80, 330,228,191.70 and 90,693,100.20

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Solution

The fourth proportional to 220,152,127.80, 330,228,191.70 and 90,693,100.20 is: 136,039,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,152,127.80 : 330,228,191.70 = 90,693,100.20 : x
  2. Step 2: Convert to fraction form
    220,152,127.80/330,228,191.70 = 90,693,100.20/x
  3. Step 3: Cross multiply
    220,152,127.80x = 330,228,191.70 × 90,693,100.20
  4. Step 4: Simplify right side
    220,152,127.80x = 29,949,418,478,712,908
  5. Step 5: Solve for x
    x = 29,949,418,478,712,908/220,152,127.80
  6. Step 6: Final answer
    x = 136,039,650.30

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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.