Home / 403,705,142.76-557,113,321.80-218,066,160

Finding the Fourth Proportional to 403,705,142.76, 557,113,321.80 and 218,066,160

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Solution

The fourth proportional to 403,705,142.76, 557,113,321.80 and 218,066,160 is: 300,931,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,705,142.76 : 557,113,321.80 = 218,066,160 : x
  2. Step 2: Convert to fraction form
    403,705,142.76/557,113,321.80 = 218,066,160/x
  3. Step 3: Cross multiply
    403,705,142.76x = 557,113,321.80 × 218,066,160
  4. Step 4: Simplify right side
    403,705,142.76x = 121,487,562,769,770,272
  5. Step 5: Solve for x
    x = 121,487,562,769,770,272/403,705,142.76
  6. Step 6: Final answer
    x = 300,931,422.22

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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.