Home / 204,237,663.80-281,809,428.82-121,739,124.92

Finding the Fourth Proportional to 204,237,663.80, 281,809,428.82 and 121,739,124.92

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Solution

The fourth proportional to 204,237,663.80, 281,809,428.82 and 121,739,124.92 is: 167,977,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,237,663.80 : 281,809,428.82 = 121,739,124.92 : x
  2. Step 2: Convert to fraction form
    204,237,663.80/281,809,428.82 = 121,739,124.92/x
  3. Step 3: Cross multiply
    204,237,663.80x = 281,809,428.82 × 121,739,124.92
  4. Step 4: Simplify right side
    204,237,663.80x = 34,307,233,257,038,436
  5. Step 5: Solve for x
    x = 34,307,233,257,038,436/204,237,663.80
  6. Step 6: Final answer
    x = 167,977,015.70

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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.