Home / 619,838,042.69-855,436,917.85-462,932,744.65

Finding the Fourth Proportional to 619,838,042.69, 855,436,917.85 and 462,932,744.65

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Solution

The fourth proportional to 619,838,042.69, 855,436,917.85 and 462,932,744.65 is: 638,892,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,838,042.69 : 855,436,917.85 = 462,932,744.65 : x
  2. Step 2: Convert to fraction form
    619,838,042.69/855,436,917.85 = 462,932,744.65/x
  3. Step 3: Cross multiply
    619,838,042.69x = 855,436,917.85 × 462,932,744.65
  4. Step 4: Simplify right side
    619,838,042.69x = 396,009,760,251,941,120
  5. Step 5: Solve for x
    x = 396,009,760,251,941,120/619,838,042.69
  6. Step 6: Final answer
    x = 638,892,312.15

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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.