Home / 479,488,857.73-661,330,012.20-412,620,522.31

Finding the Fourth Proportional to 479,488,857.73, 661,330,012.20 and 412,620,522.31

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Solution

The fourth proportional to 479,488,857.73, 661,330,012.20 and 412,620,522.31 is: 569,102,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,488,857.73 : 661,330,012.20 = 412,620,522.31 : x
  2. Step 2: Convert to fraction form
    479,488,857.73/661,330,012.20 = 412,620,522.31/x
  3. Step 3: Cross multiply
    479,488,857.73x = 661,330,012.20 × 412,620,522.31
  4. Step 4: Simplify right side
    479,488,857.73x = 272,878,335,053,242,688
  5. Step 5: Solve for x
    x = 272,878,335,053,242,688/479,488,857.73
  6. Step 6: Final answer
    x = 569,102,557.14

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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.