Home / 885,188,036.72-1,221,666,610.59-503,802,805.03

Finding the Fourth Proportional to 885,188,036.72, 1,221,666,610.59 and 503,802,805.03

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Solution

The fourth proportional to 885,188,036.72, 1,221,666,610.59 and 503,802,805.03 is: 695,308,838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,188,036.72 : 1,221,666,610.59 = 503,802,805.03 : x
  2. Step 2: Convert to fraction form
    885,188,036.72/1,221,666,610.59 = 503,802,805.03/x
  3. Step 3: Cross multiply
    885,188,036.72x = 1,221,666,610.59 × 503,802,805.03
  4. Step 4: Simplify right side
    885,188,036.72x = 615,479,065,223,680,512
  5. Step 5: Solve for x
    x = 615,479,065,223,680,512/885,188,036.72
  6. Step 6: Final answer
    x = 695,308,838.00

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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.