Home / 156,638,979.26-216,149,118.38-90,563,716.88

Finding the Fourth Proportional to 156,638,979.26, 216,149,118.38 and 90,563,716.88

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Solution

The fourth proportional to 156,638,979.26, 216,149,118.38 and 90,563,716.88 is: 124,970,602.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,638,979.26 : 216,149,118.38 = 90,563,716.88 : x
  2. Step 2: Convert to fraction form
    156,638,979.26/216,149,118.38 = 90,563,716.88/x
  3. Step 3: Cross multiply
    156,638,979.26x = 216,149,118.38 × 90,563,716.88
  4. Step 4: Simplify right side
    156,638,979.26x = 19,575,267,560,827,924
  5. Step 5: Solve for x
    x = 19,575,267,560,827,924/156,638,979.26
  6. Step 6: Final answer
    x = 124,970,602.17

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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.