Home / 311,053,916.40-429,246,086.04-171,821,681.52

Finding the Fourth Proportional to 311,053,916.40, 429,246,086.04 and 171,821,681.52

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Solution

The fourth proportional to 311,053,916.40, 429,246,086.04 and 171,821,681.52 is: 237,109,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,053,916.40 : 429,246,086.04 = 171,821,681.52 : x
  2. Step 2: Convert to fraction form
    311,053,916.40/429,246,086.04 = 171,821,681.52/x
  3. Step 3: Cross multiply
    311,053,916.40x = 429,246,086.04 × 171,821,681.52
  4. Step 4: Simplify right side
    311,053,916.40x = 73,753,784,289,271,408
  5. Step 5: Solve for x
    x = 73,753,784,289,271,408/311,053,916.40
  6. Step 6: Final answer
    x = 237,109,325.43

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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.