Home / 817,374,821.07-1,226,538,078.62-344,644,211.51

Finding the Fourth Proportional to 817,374,821.07, 1,226,538,078.62 and 344,644,211.51

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Solution

The fourth proportional to 817,374,821.07, 1,226,538,078.62 and 344,644,211.51 is: 517,166,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,374,821.07 : 1,226,538,078.62 = 344,644,211.51 : x
  2. Step 2: Convert to fraction form
    817,374,821.07/1,226,538,078.62 = 344,644,211.51/x
  3. Step 3: Cross multiply
    817,374,821.07x = 1,226,538,078.62 × 344,644,211.51
  4. Step 4: Simplify right side
    817,374,821.07x = 422,719,248,989,711,616
  5. Step 5: Solve for x
    x = 422,719,248,989,711,616/817,374,821.07
  6. Step 6: Final answer
    x = 517,166,957.06

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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.