Home / 403,705,139.84-557,113,317.24-218,066,157.20

Finding the Fourth Proportional to 403,705,139.84, 557,113,317.24 and 218,066,157.20

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Solution

The fourth proportional to 403,705,139.84, 557,113,317.24 and 218,066,157.20 is: 300,931,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,705,139.84 : 557,113,317.24 = 218,066,157.20 : x
  2. Step 2: Convert to fraction form
    403,705,139.84/557,113,317.24 = 218,066,157.20/x
  3. Step 3: Cross multiply
    403,705,139.84x = 557,113,317.24 × 218,066,157.20
  4. Step 4: Simplify right side
    403,705,139.84x = 121,487,560,215,471,312
  5. Step 5: Solve for x
    x = 121,487,560,215,471,312/403,705,139.84
  6. Step 6: Final answer
    x = 300,931,418.07

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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.