Home / 311,980,067.66-430,980,944.40-249,173,705.96

Finding the Fourth Proportional to 311,980,067.66, 430,980,944.40 and 249,173,705.96

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Solution

The fourth proportional to 311,980,067.66, 430,980,944.40 and 249,173,705.96 is: 344,217,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,980,067.66 : 430,980,944.40 = 249,173,705.96 : x
  2. Step 2: Convert to fraction form
    311,980,067.66/430,980,944.40 = 249,173,705.96/x
  3. Step 3: Cross multiply
    311,980,067.66x = 430,980,944.40 × 249,173,705.96
  4. Step 4: Simplify right side
    311,980,067.66x = 107,389,119,114,288,704
  5. Step 5: Solve for x
    x = 107,389,119,114,288,704/311,980,067.66
  6. Step 6: Final answer
    x = 344,217,885.20

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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.