Home / 151,389,274.58-208,917,282.89-81,774,655.85

Finding the Fourth Proportional to 151,389,274.58, 208,917,282.89 and 81,774,655.85

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Solution

The fourth proportional to 151,389,274.58, 208,917,282.89 and 81,774,655.85 is: 112,849,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,274.58 : 208,917,282.89 = 81,774,655.85 : x
  2. Step 2: Convert to fraction form
    151,389,274.58/208,917,282.89 = 81,774,655.85/x
  3. Step 3: Cross multiply
    151,389,274.58x = 208,917,282.89 × 81,774,655.85
  4. Step 4: Simplify right side
    151,389,274.58x = 17,084,138,908,606,694
  5. Step 5: Solve for x
    x = 17,084,138,908,606,694/151,389,274.58
  6. Step 6: Final answer
    x = 112,849,070.42

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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.