Home / 243,285,481.72-364,897,788.40-79,509,537.28

Finding the Fourth Proportional to 243,285,481.72, 364,897,788.40 and 79,509,537.28

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Solution

The fourth proportional to 243,285,481.72, 364,897,788.40 and 79,509,537.28 is: 119,254,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,285,481.72 : 364,897,788.40 = 79,509,537.28 : x
  2. Step 2: Convert to fraction form
    243,285,481.72/364,897,788.40 = 79,509,537.28/x
  3. Step 3: Cross multiply
    243,285,481.72x = 364,897,788.40 × 79,509,537.28
  4. Step 4: Simplify right side
    243,285,481.72x = 29,012,854,310,179,352
  5. Step 5: Solve for x
    x = 29,012,854,310,179,352/243,285,481.72
  6. Step 6: Final answer
    x = 119,254,359.55

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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.