Home / 140,147,242.65-210,172,181.83-77,993,406.41

Finding the Fourth Proportional to 140,147,242.65, 210,172,181.83 and 77,993,406.41

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Solution

The fourth proportional to 140,147,242.65, 210,172,181.83 and 77,993,406.41 is: 116,963,017.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,147,242.65 : 210,172,181.83 = 77,993,406.41 : x
  2. Step 2: Convert to fraction form
    140,147,242.65/210,172,181.83 = 77,993,406.41/x
  3. Step 3: Cross multiply
    140,147,242.65x = 210,172,181.83 × 77,993,406.41
  4. Step 4: Simplify right side
    140,147,242.65x = 16,392,044,393,479,980
  5. Step 5: Solve for x
    x = 16,392,044,393,479,980/140,147,242.65
  6. Step 6: Final answer
    x = 116,963,017.49

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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.