Home / 165,939,749.20-248,909,623.80-79,846,307.20

Finding the Fourth Proportional to 165,939,749.20, 248,909,623.80 and 79,846,307.20

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Solution

The fourth proportional to 165,939,749.20, 248,909,623.80 and 79,846,307.20 is: 119,769,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,939,749.20 : 248,909,623.80 = 79,846,307.20 : x
  2. Step 2: Convert to fraction form
    165,939,749.20/248,909,623.80 = 79,846,307.20/x
  3. Step 3: Cross multiply
    165,939,749.20x = 248,909,623.80 × 79,846,307.20
  4. Step 4: Simplify right side
    165,939,749.20x = 19,874,514,286,971,232
  5. Step 5: Solve for x
    x = 19,874,514,286,971,232/165,939,749.20
  6. Step 6: Final answer
    x = 119,769,460.80

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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.