Home / 663,479,186.46-915,783,373.38-385,110,390.66

Finding the Fourth Proportional to 663,479,186.46, 915,783,373.38 and 385,110,390.66

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Solution

The fourth proportional to 663,479,186.46, 915,783,373.38 and 385,110,390.66 is: 531,558,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,479,186.46 : 915,783,373.38 = 385,110,390.66 : x
  2. Step 2: Convert to fraction form
    663,479,186.46/915,783,373.38 = 385,110,390.66/x
  3. Step 3: Cross multiply
    663,479,186.46x = 915,783,373.38 × 385,110,390.66
  4. Step 4: Simplify right side
    663,479,186.46x = 352,677,692,682,304,448
  5. Step 5: Solve for x
    x = 352,677,692,682,304,448/663,479,186.46
  6. Step 6: Final answer
    x = 531,558,035.10

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