Home / 138,274,296.48-190,820,530.32-76,396,058.40

Finding the Fourth Proportional to 138,274,296.48, 190,820,530.32 and 76,396,058.40

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Solution

The fourth proportional to 138,274,296.48, 190,820,530.32 and 76,396,058.40 is: 105,427,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,274,296.48 : 190,820,530.32 = 76,396,058.40 : x
  2. Step 2: Convert to fraction form
    138,274,296.48/190,820,530.32 = 76,396,058.40/x
  3. Step 3: Cross multiply
    138,274,296.48x = 190,820,530.32 × 76,396,058.40
  4. Step 4: Simplify right side
    138,274,296.48x = 14,577,936,378,245,692
  5. Step 5: Solve for x
    x = 14,577,936,378,245,692/138,274,296.48
  6. Step 6: Final answer
    x = 105,427,666.24

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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.