Home / 151,389,277.66-208,917,287.13-81,774,658.90

Finding the Fourth Proportional to 151,389,277.66, 208,917,287.13 and 81,774,658.90

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Solution

The fourth proportional to 151,389,277.66, 208,917,287.13 and 81,774,658.90 is: 112,849,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,277.66 : 208,917,287.13 = 81,774,658.90 : x
  2. Step 2: Convert to fraction form
    151,389,277.66/208,917,287.13 = 81,774,658.90/x
  3. Step 3: Cross multiply
    151,389,277.66x = 208,917,287.13 × 81,774,658.90
  4. Step 4: Simplify right side
    151,389,277.66x = 17,084,139,893,369,110
  5. Step 5: Solve for x
    x = 17,084,139,893,369,110/151,389,277.66
  6. Step 6: Final answer
    x = 112,849,074.63

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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.