Home / 79,285,826.76-118,928,509.83-21,778,153.08

Finding the Fourth Proportional to 79,285,826.76, 118,928,509.83 and 21,778,153.08

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Solution

The fourth proportional to 79,285,826.76, 118,928,509.83 and 21,778,153.08 is: 32,667,166.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285,826.76 : 118,928,509.83 = 21,778,153.08 : x
  2. Step 2: Convert to fraction form
    79,285,826.76/118,928,509.83 = 21,778,153.08/x
  3. Step 3: Cross multiply
    79,285,826.76x = 118,928,509.83 × 21,778,153.08
  4. Step 4: Simplify right side
    79,285,826.76x = 2,590,043,292,654,024.50
  5. Step 5: Solve for x
    x = 2,590,043,292,654,024.50/79,285,826.76
  6. Step 6: Final answer
    x = 32,667,166.36

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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.