Home / 142,175,703.88-196,202,738.29-79,451,802.28

Finding the Fourth Proportional to 142,175,703.88, 196,202,738.29 and 79,451,802.28

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Solution

The fourth proportional to 142,175,703.88, 196,202,738.29 and 79,451,802.28 is: 109,643,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,175,703.88 : 196,202,738.29 = 79,451,802.28 : x
  2. Step 2: Convert to fraction form
    142,175,703.88/196,202,738.29 = 79,451,802.28/x
  3. Step 3: Cross multiply
    142,175,703.88x = 196,202,738.29 × 79,451,802.28
  4. Step 4: Simplify right side
    142,175,703.88x = 15,588,661,168,430,652
  5. Step 5: Solve for x
    x = 15,588,661,168,430,652/142,175,703.88
  6. Step 6: Final answer
    x = 109,643,636.31

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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.