Home / 165,963,611.70-248,945,417.55-79,870,169.70

Finding the Fourth Proportional to 165,963,611.70, 248,945,417.55 and 79,870,169.70

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Solution

The fourth proportional to 165,963,611.70, 248,945,417.55 and 79,870,169.70 is: 119,805,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,963,611.70 : 248,945,417.55 = 79,870,169.70 : x
  2. Step 2: Convert to fraction form
    165,963,611.70/248,945,417.55 = 79,870,169.70/x
  3. Step 3: Cross multiply
    165,963,611.70x = 248,945,417.55 × 79,870,169.70
  4. Step 4: Simplify right side
    165,963,611.70x = 19,883,312,745,755,860
  5. Step 5: Solve for x
    x = 19,883,312,745,755,860/165,963,611.70
  6. Step 6: Final answer
    x = 119,805,254.55

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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.