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Finding the Fourth Proportional to 611,465,495.22, 916,291,249.76 and 449,113,812.66

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Solution

The fourth proportional to 611,465,495.22, 916,291,249.76 and 449,113,812.66 is: 673,004,543.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,465,495.22 : 916,291,249.76 = 449,113,812.66 : x
  2. Step 2: Convert to fraction form
    611,465,495.22/916,291,249.76 = 449,113,812.66/x
  3. Step 3: Cross multiply
    611,465,495.22x = 916,291,249.76 × 449,113,812.66
  4. Step 4: Simplify right side
    611,465,495.22x = 411,519,056,684,464,384
  5. Step 5: Solve for x
    x = 411,519,056,684,464,384/611,465,495.22
  6. Step 6: Final answer
    x = 673,004,543.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.