Home / 138,976,347.51-191,810,350.62-77,116,615.11

Finding the Fourth Proportional to 138,976,347.51, 191,810,350.62 and 77,116,615.11

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Solution

The fourth proportional to 138,976,347.51, 191,810,350.62 and 77,116,615.11 is: 106,433,686.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,976,347.51 : 191,810,350.62 = 77,116,615.11 : x
  2. Step 2: Convert to fraction form
    138,976,347.51/191,810,350.62 = 77,116,615.11/x
  3. Step 3: Cross multiply
    138,976,347.51x = 191,810,350.62 × 77,116,615.11
  4. Step 4: Simplify right side
    138,976,347.51x = 14,791,764,982,876,690
  5. Step 5: Solve for x
    x = 14,791,764,982,876,690/138,976,347.51
  6. Step 6: Final answer
    x = 106,433,686.36

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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.