Home / 403,705,014.94-557,113,144.82-218,066,032.45

Finding the Fourth Proportional to 403,705,014.94, 557,113,144.82 and 218,066,032.45

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Solution

The fourth proportional to 403,705,014.94, 557,113,144.82 and 218,066,032.45 is: 300,931,245.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,705,014.94 : 557,113,144.82 = 218,066,032.45 : x
  2. Step 2: Convert to fraction form
    403,705,014.94/557,113,144.82 = 218,066,032.45/x
  3. Step 3: Cross multiply
    403,705,014.94x = 557,113,144.82 × 218,066,032.45
  4. Step 4: Simplify right side
    403,705,014.94x = 121,487,453,115,549,344
  5. Step 5: Solve for x
    x = 121,487,453,115,549,344/403,705,014.94
  6. Step 6: Final answer
    x = 300,931,245.88

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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.