Home / 212,206,460.56-318,291,457.38-129,186,667.24

Finding the Fourth Proportional to 212,206,460.56, 318,291,457.38 and 129,186,667.24

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Solution

The fourth proportional to 212,206,460.56, 318,291,457.38 and 129,186,667.24 is: 193,768,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,206,460.56 : 318,291,457.38 = 129,186,667.24 : x
  2. Step 2: Convert to fraction form
    212,206,460.56/318,291,457.38 = 129,186,667.24/x
  3. Step 3: Cross multiply
    212,206,460.56x = 318,291,457.38 × 129,186,667.24
  4. Step 4: Simplify right side
    212,206,460.56x = 41,119,012,589,884,696
  5. Step 5: Solve for x
    x = 41,119,012,589,884,696/212,206,460.56
  6. Step 6: Final answer
    x = 193,768,900.73

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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.