Home / 151,389,406.98-208,917,465.66-81,774,788.54

Finding the Fourth Proportional to 151,389,406.98, 208,917,465.66 and 81,774,788.54

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Solution

The fourth proportional to 151,389,406.98, 208,917,465.66 and 81,774,788.54 is: 112,849,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,406.98 : 208,917,465.66 = 81,774,788.54 : x
  2. Step 2: Convert to fraction form
    151,389,406.98/208,917,465.66 = 81,774,788.54/x
  3. Step 3: Cross multiply
    151,389,406.98x = 208,917,465.66 × 81,774,788.54
  4. Step 4: Simplify right side
    151,389,406.98x = 17,084,181,575,614,624
  5. Step 5: Solve for x
    x = 17,084,181,575,614,624/151,389,406.98
  6. Step 6: Final answer
    x = 112,849,253.57

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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.