Home / 885,188,149.30-1,221,666,763.17-503,802,912.58

Finding the Fourth Proportional to 885,188,149.30, 1,221,666,763.17 and 503,802,912.58

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Solution

The fourth proportional to 885,188,149.30, 1,221,666,763.17 and 503,802,912.58 is: 695,308,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,188,149.30 : 1,221,666,763.17 = 503,802,912.58 : x
  2. Step 2: Convert to fraction form
    885,188,149.30/1,221,666,763.17 = 503,802,912.58/x
  3. Step 3: Cross multiply
    885,188,149.30x = 1,221,666,763.17 × 503,802,912.58
  4. Step 4: Simplify right side
    885,188,149.30x = 615,479,273,485,781,248
  5. Step 5: Solve for x
    x = 615,479,273,485,781,248/885,188,149.30
  6. Step 6: Final answer
    x = 695,308,984.84

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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.