Home / 403,705,118.25-557,113,287.56-218,066,135.76

Finding the Fourth Proportional to 403,705,118.25, 557,113,287.56 and 218,066,135.76

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Solution

The fourth proportional to 403,705,118.25, 557,113,287.56 and 218,066,135.76 is: 300,931,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,705,118.25 : 557,113,287.56 = 218,066,135.76 : x
  2. Step 2: Convert to fraction form
    403,705,118.25/557,113,287.56 = 218,066,135.76/x
  3. Step 3: Cross multiply
    403,705,118.25x = 557,113,287.56 × 218,066,135.76
  4. Step 4: Simplify right side
    403,705,118.25x = 121,487,541,797,668,528
  5. Step 5: Solve for x
    x = 121,487,541,797,668,528/403,705,118.25
  6. Step 6: Final answer
    x = 300,931,388.54

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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.