Home / 86,314,215.84-129,489,986.16-45,918,828.96

Finding the Fourth Proportional to 86,314,215.84, 129,489,986.16 and 45,918,828.96

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Solution

The fourth proportional to 86,314,215.84, 129,489,986.16 and 45,918,828.96 is: 68,888,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,314,215.84 : 129,489,986.16 = 45,918,828.96 : x
  2. Step 2: Convert to fraction form
    86,314,215.84/129,489,986.16 = 45,918,828.96/x
  3. Step 3: Cross multiply
    86,314,215.84x = 129,489,986.16 × 45,918,828.96
  4. Step 4: Simplify right side
    86,314,215.84x = 5,946,028,526,513,807
  5. Step 5: Solve for x
    x = 5,946,028,526,513,807/86,314,215.84
  6. Step 6: Final answer
    x = 68,888,171.76

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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.