Home / 403,702,655.88-557,109,579.06-218,063,673.48

Finding the Fourth Proportional to 403,702,655.88, 557,109,579.06 and 218,063,673.48

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Solution

The fourth proportional to 403,702,655.88, 557,109,579.06 and 218,063,673.48 is: 300,927,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,702,655.88 : 557,109,579.06 = 218,063,673.48 : x
  2. Step 2: Convert to fraction form
    403,702,655.88/557,109,579.06 = 218,063,673.48/x
  3. Step 3: Cross multiply
    403,702,655.88x = 557,109,579.06 × 218,063,673.48
  4. Step 4: Simplify right side
    403,702,655.88x = 121,485,361,340,720,064
  5. Step 5: Solve for x
    x = 121,485,361,340,720,064/403,702,655.88
  6. Step 6: Final answer
    x = 300,927,822.92

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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.