Home / 889,938,042.21-1,228,117,143.65-493,488,961.11

Finding the Fourth Proportional to 889,938,042.21, 1,228,117,143.65 and 493,488,961.11

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Solution

The fourth proportional to 889,938,042.21, 1,228,117,143.65 and 493,488,961.11 is: 681,016,233.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,938,042.21 : 1,228,117,143.65 = 493,488,961.11 : x
  2. Step 2: Convert to fraction form
    889,938,042.21/1,228,117,143.65 = 493,488,961.11/x
  3. Step 3: Cross multiply
    889,938,042.21x = 1,228,117,143.65 × 493,488,961.11
  4. Step 4: Simplify right side
    889,938,042.21x = 606,062,253,338,751,744
  5. Step 5: Solve for x
    x = 606,062,253,338,751,744/889,938,042.21
  6. Step 6: Final answer
    x = 681,016,233.26

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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.