Home / 431,191,948.40-646,815,916.20-227,118,604.40

Finding the Fourth Proportional to 431,191,948.40, 646,815,916.20 and 227,118,604.40

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Solution

The fourth proportional to 431,191,948.40, 646,815,916.20 and 227,118,604.40 is: 340,692,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,191,948.40 : 646,815,916.20 = 227,118,604.40 : x
  2. Step 2: Convert to fraction form
    431,191,948.40/646,815,916.20 = 227,118,604.40/x
  3. Step 3: Cross multiply
    431,191,948.40x = 646,815,916.20 × 227,118,604.40
  4. Step 4: Simplify right side
    431,191,948.40x = 146,903,928,191,051,360
  5. Step 5: Solve for x
    x = 146,903,928,191,051,360/431,191,948.40
  6. Step 6: Final answer
    x = 340,692,651.47

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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.