Home / 99,645,716.80-149,492,194.80-51,131,058.40

Finding the Fourth Proportional to 99,645,716.80, 149,492,194.80 and 51,131,058.40

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Solution

The fourth proportional to 99,645,716.80, 149,492,194.80 and 51,131,058.40 is: 76,708,707.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,716.80 : 149,492,194.80 = 51,131,058.40 : x
  2. Step 2: Convert to fraction form
    99,645,716.80/149,492,194.80 = 51,131,058.40/x
  3. Step 3: Cross multiply
    99,645,716.80x = 149,492,194.80 × 51,131,058.40
  4. Step 4: Simplify right side
    99,645,716.80x = 7,643,694,142,662,977
  5. Step 5: Solve for x
    x = 7,643,694,142,662,977/99,645,716.80
  6. Step 6: Final answer
    x = 76,708,707.49

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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.