Home / 921,555,489.06-1,271,746,682.73-503,868,057.30

Finding the Fourth Proportional to 921,555,489.06, 1,271,746,682.73 and 503,868,057.30

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Solution

The fourth proportional to 921,555,489.06, 1,271,746,682.73 and 503,868,057.30 is: 695,337,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,555,489.06 : 1,271,746,682.73 = 503,868,057.30 : x
  2. Step 2: Convert to fraction form
    921,555,489.06/1,271,746,682.73 = 503,868,057.30/x
  3. Step 3: Cross multiply
    921,555,489.06x = 1,271,746,682.73 × 503,868,057.30
  4. Step 4: Simplify right side
    921,555,489.06x = 640,792,530,404,884,608
  5. Step 5: Solve for x
    x = 640,792,530,404,884,608/921,555,489.06
  6. Step 6: Final answer
    x = 695,337,978.03

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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.