Home / 86,534,888.14-129,819,653.34-31,947,805.54

Finding the Fourth Proportional to 86,534,888.14, 129,819,653.34 and 31,947,805.54

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Solution

The fourth proportional to 86,534,888.14, 129,819,653.34 and 31,947,805.54 is: 47,928,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,534,888.14 : 129,819,653.34 = 31,947,805.54 : x
  2. Step 2: Convert to fraction form
    86,534,888.14/129,819,653.34 = 31,947,805.54/x
  3. Step 3: Cross multiply
    86,534,888.14x = 129,819,653.34 × 31,947,805.54
  4. Step 4: Simplify right side
    86,534,888.14x = 4,147,453,040,176,531.50
  5. Step 5: Solve for x
    x = 4,147,453,040,176,531.50/86,534,888.14
  6. Step 6: Final answer
    x = 47,928,103.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.