Home / 413,138,429.10-619,707,643.65-389,462,732.55

Finding the Fourth Proportional to 413,138,429.10, 619,707,643.65 and 389,462,732.55

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Solution

The fourth proportional to 413,138,429.10, 619,707,643.65 and 389,462,732.55 is: 584,194,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,138,429.10 : 619,707,643.65 = 389,462,732.55 : x
  2. Step 2: Convert to fraction form
    413,138,429.10/619,707,643.65 = 389,462,732.55/x
  3. Step 3: Cross multiply
    413,138,429.10x = 619,707,643.65 × 389,462,732.55
  4. Step 4: Simplify right side
    413,138,429.10x = 241,353,032,278,050,656
  5. Step 5: Solve for x
    x = 241,353,032,278,050,656/413,138,429.10
  6. Step 6: Final answer
    x = 584,194,098.83

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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.