Home / 403,705,123.75-557,113,295.15-218,066,141.26

Finding the Fourth Proportional to 403,705,123.75, 557,113,295.15 and 218,066,141.26

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Solution

The fourth proportional to 403,705,123.75, 557,113,295.15 and 218,066,141.26 is: 300,931,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,705,123.75 : 557,113,295.15 = 218,066,141.26 : x
  2. Step 2: Convert to fraction form
    403,705,123.75/557,113,295.15 = 218,066,141.26/x
  3. Step 3: Cross multiply
    403,705,123.75x = 557,113,295.15 × 218,066,141.26
  4. Step 4: Simplify right side
    403,705,123.75x = 121,487,546,518,003,968
  5. Step 5: Solve for x
    x = 121,487,546,518,003,968/403,705,123.75
  6. Step 6: Final answer
    x = 300,931,396.14

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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.