Home / 212,731,589.20-293,519,605.08-129,097,825.60

Finding the Fourth Proportional to 212,731,589.20, 293,519,605.08 and 129,097,825.60

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Solution

The fourth proportional to 212,731,589.20, 293,519,605.08 and 129,097,825.60 is: 178,124,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,731,589.20 : 293,519,605.08 = 129,097,825.60 : x
  2. Step 2: Convert to fraction form
    212,731,589.20/293,519,605.08 = 129,097,825.60/x
  3. Step 3: Cross multiply
    212,731,589.20x = 293,519,605.08 × 129,097,825.60
  4. Step 4: Simplify right side
    212,731,589.20x = 37,892,742,786,798,712
  5. Step 5: Solve for x
    x = 37,892,742,786,798,712/212,731,589.20
  6. Step 6: Final answer
    x = 178,124,663.71

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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.