Home / 151,389,339.22-208,917,372.20-81,774,720.79

Finding the Fourth Proportional to 151,389,339.22, 208,917,372.20 and 81,774,720.79

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Solution

The fourth proportional to 151,389,339.22, 208,917,372.20 and 81,774,720.79 is: 112,849,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,339.22 : 208,917,372.20 = 81,774,720.79 : x
  2. Step 2: Convert to fraction form
    151,389,339.22/208,917,372.20 = 81,774,720.79/x
  3. Step 3: Cross multiply
    151,389,339.22x = 208,917,372.20 × 81,774,720.79
  4. Step 4: Simplify right side
    151,389,339.22x = 17,084,159,778,904,340
  5. Step 5: Solve for x
    x = 17,084,159,778,904,340/151,389,339.22
  6. Step 6: Final answer
    x = 112,849,160.10

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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.