Home / 165,939,780.70-248,909,671.05-79,846,338.70

Finding the Fourth Proportional to 165,939,780.70, 248,909,671.05 and 79,846,338.70

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Solution

The fourth proportional to 165,939,780.70, 248,909,671.05 and 79,846,338.70 is: 119,769,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,939,780.70 : 248,909,671.05 = 79,846,338.70 : x
  2. Step 2: Convert to fraction form
    165,939,780.70/248,909,671.05 = 79,846,338.70/x
  3. Step 3: Cross multiply
    165,939,780.70x = 248,909,671.05 × 79,846,338.70
  4. Step 4: Simplify right side
    165,939,780.70x = 19,874,525,900,363,888
  5. Step 5: Solve for x
    x = 19,874,525,900,363,888/165,939,780.70
  6. Step 6: Final answer
    x = 119,769,508.05

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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.