Home / 405,980,576.79-560,253,736.59-220,341,592.47

Finding the Fourth Proportional to 405,980,576.79, 560,253,736.59 and 220,341,592.47

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Solution

The fourth proportional to 405,980,576.79, 560,253,736.59 and 220,341,592.47 is: 304,071,691.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,980,576.79 : 560,253,736.59 = 220,341,592.47 : x
  2. Step 2: Convert to fraction form
    405,980,576.79/560,253,736.59 = 220,341,592.47/x
  3. Step 3: Cross multiply
    405,980,576.79x = 560,253,736.59 × 220,341,592.47
  4. Step 4: Simplify right side
    405,980,576.79x = 123,447,200,507,508,512
  5. Step 5: Solve for x
    x = 123,447,200,507,508,512/405,980,576.79
  6. Step 6: Final answer
    x = 304,071,691.02

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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.