Home / 86,205,809.20-129,308,713.80-82,804,586.80

Finding the Fourth Proportional to 86,205,809.20, 129,308,713.80 and 82,804,586.80

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Solution

The fourth proportional to 86,205,809.20, 129,308,713.80 and 82,804,586.80 is: 124,206,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,205,809.20 : 129,308,713.80 = 82,804,586.80 : x
  2. Step 2: Convert to fraction form
    86,205,809.20/129,308,713.80 = 82,804,586.80/x
  3. Step 3: Cross multiply
    86,205,809.20x = 129,308,713.80 × 82,804,586.80
  4. Step 4: Simplify right side
    86,205,809.20x = 10,707,354,615,848,458
  5. Step 5: Solve for x
    x = 10,707,354,615,848,458/86,205,809.20
  6. Step 6: Final answer
    x = 124,206,880.20

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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.