Home / 311,980,082.22-430,980,964.38-249,173,720.46

Finding the Fourth Proportional to 311,980,082.22, 430,980,964.38 and 249,173,720.46

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Solution

The fourth proportional to 311,980,082.22, 430,980,964.38 and 249,173,720.46 is: 344,217,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,980,082.22 : 430,980,964.38 = 249,173,720.46 : x
  2. Step 2: Convert to fraction form
    311,980,082.22/430,980,964.38 = 249,173,720.46/x
  3. Step 3: Cross multiply
    311,980,082.22x = 430,980,964.38 × 249,173,720.46
  4. Step 4: Simplify right side
    311,980,082.22x = 107,389,130,342,003,344
  5. Step 5: Solve for x
    x = 107,389,130,342,003,344/311,980,082.22
  6. Step 6: Final answer
    x = 344,217,905.12

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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.