Home / 812,966,505.89-1,121,893,776.48-460,542,496.13

Finding the Fourth Proportional to 812,966,505.89, 1,121,893,776.48 and 460,542,496.13

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Solution

The fourth proportional to 812,966,505.89, 1,121,893,776.48 and 460,542,496.13 is: 635,548,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,966,505.89 : 1,121,893,776.48 = 460,542,496.13 : x
  2. Step 2: Convert to fraction form
    812,966,505.89/1,121,893,776.48 = 460,542,496.13/x
  3. Step 3: Cross multiply
    812,966,505.89x = 1,121,893,776.48 × 460,542,496.13
  4. Step 4: Simplify right side
    812,966,505.89x = 516,679,760,213,159,168
  5. Step 5: Solve for x
    x = 516,679,760,213,159,168/812,966,505.89
  6. Step 6: Final answer
    x = 635,548,643.73

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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.