Home / 1,180,191,906.60-1,628,656,398.70-644,343,554.85

Finding the Fourth Proportional to 1,180,191,906.60, 1,628,656,398.70 and 644,343,554.85

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Solution

The fourth proportional to 1,180,191,906.60, 1,628,656,398.70 and 644,343,554.85 is: 889,189,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,191,906.60 : 1,628,656,398.70 = 644,343,554.85 : x
  2. Step 2: Convert to fraction form
    1,180,191,906.60/1,628,656,398.70 = 644,343,554.85/x
  3. Step 3: Cross multiply
    1,180,191,906.60x = 1,628,656,398.70 × 644,343,554.85
  4. Step 4: Simplify right side
    1,180,191,906.60x = 1,049,414,253,567,556,992
  5. Step 5: Solve for x
    x = 1,049,414,253,567,556,992/1,180,191,906.60
  6. Step 6: Final answer
    x = 889,189,501.89

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1.5x scale

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.