Home / 86,938,660.74-119,972,815.29-49,767,708.90

Finding the Fourth Proportional to 86,938,660.74, 119,972,815.29 and 49,767,708.90

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Solution

The fourth proportional to 86,938,660.74, 119,972,815.29 and 49,767,708.90 is: 68,677,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,660.74 : 119,972,815.29 = 49,767,708.90 : x
  2. Step 2: Convert to fraction form
    86,938,660.74/119,972,815.29 = 49,767,708.90/x
  3. Step 3: Cross multiply
    86,938,660.74x = 119,972,815.29 × 49,767,708.90
  4. Step 4: Simplify right side
    86,938,660.74x = 5,970,772,147,266,189
  5. Step 5: Solve for x
    x = 5,970,772,147,266,189/86,938,660.74
  6. Step 6: Final answer
    x = 68,677,986.25

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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.