Home / 427,842,854.28-642,002,730.03-231,102,302.58

Finding the Fourth Proportional to 427,842,854.28, 642,002,730.03 and 231,102,302.58

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Solution

The fourth proportional to 427,842,854.28, 642,002,730.03 and 231,102,302.58 is: 346,782,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,842,854.28 : 642,002,730.03 = 231,102,302.58 : x
  2. Step 2: Convert to fraction form
    427,842,854.28/642,002,730.03 = 231,102,302.58/x
  3. Step 3: Cross multiply
    427,842,854.28x = 642,002,730.03 × 231,102,302.58
  4. Step 4: Simplify right side
    427,842,854.28x = 148,368,309,172,579,104
  5. Step 5: Solve for x
    x = 148,368,309,172,579,104/427,842,854.28
  6. Step 6: Final answer
    x = 346,782,253.55

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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.