Home / 151,389,357.29-208,917,397.16-81,774,738.75

Finding the Fourth Proportional to 151,389,357.29, 208,917,397.16 and 81,774,738.75

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Solution

The fourth proportional to 151,389,357.29, 208,917,397.16 and 81,774,738.75 is: 112,849,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,357.29 : 208,917,397.16 = 81,774,738.75 : x
  2. Step 2: Convert to fraction form
    151,389,357.29/208,917,397.16 = 81,774,738.75/x
  3. Step 3: Cross multiply
    151,389,357.29x = 208,917,397.16 × 81,774,738.75
  4. Step 4: Simplify right side
    151,389,357.29x = 17,084,165,572,680,118
  5. Step 5: Solve for x
    x = 17,084,165,572,680,118/151,389,357.29
  6. Step 6: Final answer
    x = 112,849,184.90

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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.