Home / 1,705,749,698.52-2,556,990,005.85-721,822,728.78

Finding the Fourth Proportional to 1,705,749,698.52, 2,556,990,005.85 and 721,822,728.78

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Solution

The fourth proportional to 1,705,749,698.52, 2,556,990,005.85 and 721,822,728.78 is: 1,082,042,403.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705,749,698.52 : 2,556,990,005.85 = 721,822,728.78 : x
  2. Step 2: Convert to fraction form
    1,705,749,698.52/2,556,990,005.85 = 721,822,728.78/x
  3. Step 3: Cross multiply
    1,705,749,698.52x = 2,556,990,005.85 × 721,822,728.78
  4. Step 4: Simplify right side
    1,705,749,698.52x = 1,845,693,503,485,835,008
  5. Step 5: Solve for x
    x = 1,845,693,503,485,835,008/1,705,749,698.52
  6. Step 6: Final answer
    x = 1,082,042,403.46

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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.