Home / 210,974,999.80-316,462,499.70-142,100,246.20

Finding the Fourth Proportional to 210,974,999.80, 316,462,499.70 and 142,100,246.20

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Solution

The fourth proportional to 210,974,999.80, 316,462,499.70 and 142,100,246.20 is: 213,150,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,974,999.80 : 316,462,499.70 = 142,100,246.20 : x
  2. Step 2: Convert to fraction form
    210,974,999.80/316,462,499.70 = 142,100,246.20/x
  3. Step 3: Cross multiply
    210,974,999.80x = 316,462,499.70 × 142,100,246.20
  4. Step 4: Simplify right side
    210,974,999.80x = 44,969,399,120,437,424
  5. Step 5: Solve for x
    x = 44,969,399,120,437,424/210,974,999.80
  6. Step 6: Final answer
    x = 213,150,369.30

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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.