Home / 156,638,976.26-216,149,114.24-90,563,713.88

Finding the Fourth Proportional to 156,638,976.26, 216,149,114.24 and 90,563,713.88

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Solution

The fourth proportional to 156,638,976.26, 216,149,114.24 and 90,563,713.88 is: 124,970,598.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,638,976.26 : 216,149,114.24 = 90,563,713.88 : x
  2. Step 2: Convert to fraction form
    156,638,976.26/216,149,114.24 = 90,563,713.88/x
  3. Step 3: Cross multiply
    156,638,976.26x = 216,149,114.24 × 90,563,713.88
  4. Step 4: Simplify right side
    156,638,976.26x = 19,575,266,537,939,632
  5. Step 5: Solve for x
    x = 19,575,266,537,939,632/156,638,976.26
  6. Step 6: Final answer
    x = 124,970,598.03

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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.