Home / 285,368,800.41-393,810,960.11-154,988,608.41

Finding the Fourth Proportional to 285,368,800.41, 393,810,960.11 and 154,988,608.41

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Solution

The fourth proportional to 285,368,800.41, 393,810,960.11 and 154,988,608.41 is: 213,885,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,368,800.41 : 393,810,960.11 = 154,988,608.41 : x
  2. Step 2: Convert to fraction form
    285,368,800.41/393,810,960.11 = 154,988,608.41/x
  3. Step 3: Cross multiply
    285,368,800.41x = 393,810,960.11 × 154,988,608.41
  4. Step 4: Simplify right side
    285,368,800.41x = 61,036,212,683,279,976
  5. Step 5: Solve for x
    x = 61,036,212,683,279,976/285,368,800.41
  6. Step 6: Final answer
    x = 213,885,374.28

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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.