Home / 766,403,815.47-1,057,637,101.82-413,979,809.82

Finding the Fourth Proportional to 766,403,815.47, 1,057,637,101.82 and 413,979,809.82

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Solution

The fourth proportional to 766,403,815.47, 1,057,637,101.82 and 413,979,809.82 is: 571,292,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,403,815.47 : 1,057,637,101.82 = 413,979,809.82 : x
  2. Step 2: Convert to fraction form
    766,403,815.47/1,057,637,101.82 = 413,979,809.82/x
  3. Step 3: Cross multiply
    766,403,815.47x = 1,057,637,101.82 × 413,979,809.82
  4. Step 4: Simplify right side
    766,403,815.47x = 437,840,406,270,019,584
  5. Step 5: Solve for x
    x = 437,840,406,270,019,584/766,403,815.47
  6. Step 6: Final answer
    x = 571,292,049.22

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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.