Home / 666,628,764.05-920,266,695.46-443,980,966.61

Finding the Fourth Proportional to 666,628,764.05, 920,266,695.46 and 443,980,966.61

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Solution

The fourth proportional to 666,628,764.05, 920,266,695.46 and 443,980,966.61 is: 612,906,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,628,764.05 : 920,266,695.46 = 443,980,966.61 : x
  2. Step 2: Convert to fraction form
    666,628,764.05/920,266,695.46 = 443,980,966.61/x
  3. Step 3: Cross multiply
    666,628,764.05x = 920,266,695.46 × 443,980,966.61
  4. Step 4: Simplify right side
    666,628,764.05x = 408,580,896,992,176,960
  5. Step 5: Solve for x
    x = 408,580,896,992,176,960/666,628,764.05
  6. Step 6: Final answer
    x = 612,906,191.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.