Home / 628,920,774.30-943,381,161.45-192,220,614.30

Finding the Fourth Proportional to 628,920,774.30, 943,381,161.45 and 192,220,614.30

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Solution

The fourth proportional to 628,920,774.30, 943,381,161.45 and 192,220,614.30 is: 288,330,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,920,774.30 : 943,381,161.45 = 192,220,614.30 : x
  2. Step 2: Convert to fraction form
    628,920,774.30/943,381,161.45 = 192,220,614.30/x
  3. Step 3: Cross multiply
    628,920,774.30x = 943,381,161.45 × 192,220,614.30
  4. Step 4: Simplify right side
    628,920,774.30x = 181,337,306,372,966,496
  5. Step 5: Solve for x
    x = 181,337,306,372,966,496/628,920,774.30
  6. Step 6: Final answer
    x = 288,330,921.45

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Similar ratio
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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.