Home / 628,920,772.80-943,381,159.20-192,220,612.80

Finding the Fourth Proportional to 628,920,772.80, 943,381,159.20 and 192,220,612.80

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Solution

The fourth proportional to 628,920,772.80, 943,381,159.20 and 192,220,612.80 is: 288,330,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,920,772.80 : 943,381,159.20 = 192,220,612.80 : x
  2. Step 2: Convert to fraction form
    628,920,772.80/943,381,159.20 = 192,220,612.80/x
  3. Step 3: Cross multiply
    628,920,772.80x = 943,381,159.20 × 192,220,612.80
  4. Step 4: Simplify right side
    628,920,772.80x = 181,337,304,525,398,368
  5. Step 5: Solve for x
    x = 181,337,304,525,398,368/628,920,772.80
  6. Step 6: Final answer
    x = 288,330,919.20

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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.