Home / 151,389,354.29-208,917,393.01-81,774,735.75

Finding the Fourth Proportional to 151,389,354.29, 208,917,393.01 and 81,774,735.75

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Solution

The fourth proportional to 151,389,354.29, 208,917,393.01 and 81,774,735.75 is: 112,849,180.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,354.29 : 208,917,393.01 = 81,774,735.75 : x
  2. Step 2: Convert to fraction form
    151,389,354.29/208,917,393.01 = 81,774,735.75/x
  3. Step 3: Cross multiply
    151,389,354.29x = 208,917,393.01 × 81,774,735.75
  4. Step 4: Simplify right side
    151,389,354.29x = 17,084,164,606,767,210
  5. Step 5: Solve for x
    x = 17,084,164,606,767,210/151,389,354.29
  6. Step 6: Final answer
    x = 112,849,180.76

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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.