Home / 195,970,379.91-270,301,437.74-128,967,990.51

Finding the Fourth Proportional to 195,970,379.91, 270,301,437.74 and 128,967,990.51

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Solution

The fourth proportional to 195,970,379.91, 270,301,437.74 and 128,967,990.51 is: 177,885,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,970,379.91 : 270,301,437.74 = 128,967,990.51 : x
  2. Step 2: Convert to fraction form
    195,970,379.91/270,301,437.74 = 128,967,990.51/x
  3. Step 3: Cross multiply
    195,970,379.91x = 270,301,437.74 × 128,967,990.51
  4. Step 4: Simplify right side
    195,970,379.91x = 34,860,233,257,901,636
  5. Step 5: Solve for x
    x = 34,860,233,257,901,636/195,970,379.91
  6. Step 6: Final answer
    x = 177,885,215.48

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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.