Home / 619,531,449.12-855,015,159.17-462,626,151.08

Finding the Fourth Proportional to 619,531,449.12, 855,015,159.17 and 462,626,151.08

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Solution

The fourth proportional to 619,531,449.12, 855,015,159.17 and 462,626,151.08 is: 638,470,206.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,531,449.12 : 855,015,159.17 = 462,626,151.08 : x
  2. Step 2: Convert to fraction form
    619,531,449.12/855,015,159.17 = 462,626,151.08/x
  3. Step 3: Cross multiply
    619,531,449.12x = 855,015,159.17 × 462,626,151.08
  4. Step 4: Simplify right side
    619,531,449.12x = 395,552,372,198,752,128
  5. Step 5: Solve for x
    x = 395,552,372,198,752,128/619,531,449.12
  6. Step 6: Final answer
    x = 638,470,206.41

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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.