Home / 151,716,486.51-209,368,744.54-82,101,869.28

Finding the Fourth Proportional to 151,716,486.51, 209,368,744.54 and 82,101,869.28

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Solution

The fourth proportional to 151,716,486.51, 209,368,744.54 and 82,101,869.28 is: 113,300,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,716,486.51 : 209,368,744.54 = 82,101,869.28 : x
  2. Step 2: Convert to fraction form
    151,716,486.51/209,368,744.54 = 82,101,869.28/x
  3. Step 3: Cross multiply
    151,716,486.51x = 209,368,744.54 × 82,101,869.28
  4. Step 4: Simplify right side
    151,716,486.51x = 17,189,565,295,335,538
  5. Step 5: Solve for x
    x = 17,189,565,295,335,538/151,716,486.51
  6. Step 6: Final answer
    x = 113,300,575.90

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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.