Home / 256,168,618.33-383,850,559.59-198,018,781.51

Finding the Fourth Proportional to 256,168,618.33, 383,850,559.59 and 198,018,781.51

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Solution

The fourth proportional to 256,168,618.33, 383,850,559.59 and 198,018,781.51 is: 296,717,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,168,618.33 : 383,850,559.59 = 198,018,781.51 : x
  2. Step 2: Convert to fraction form
    256,168,618.33/383,850,559.59 = 198,018,781.51/x
  3. Step 3: Cross multiply
    256,168,618.33x = 383,850,559.59 × 198,018,781.51
  4. Step 4: Simplify right side
    256,168,618.33x = 76,009,620,091,943,440
  5. Step 5: Solve for x
    x = 76,009,620,091,943,440/256,168,618.33
  6. Step 6: Final answer
    x = 296,717,141.18

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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.