Home / 151,389,356.91-208,917,396.63-81,774,738.38

Finding the Fourth Proportional to 151,389,356.91, 208,917,396.63 and 81,774,738.38

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Solution

The fourth proportional to 151,389,356.91, 208,917,396.63 and 81,774,738.38 is: 112,849,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,356.91 : 208,917,396.63 = 81,774,738.38 : x
  2. Step 2: Convert to fraction form
    151,389,356.91/208,917,396.63 = 81,774,738.38/x
  3. Step 3: Cross multiply
    151,389,356.91x = 208,917,396.63 × 81,774,738.38
  4. Step 4: Simplify right side
    151,389,356.91x = 17,084,165,451,404,356
  5. Step 5: Solve for x
    x = 17,084,165,451,404,356/151,389,356.91
  6. Step 6: Final answer
    x = 112,849,184.38

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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.