Home / 89,179,969.80-133,769,954.70-28,601,819.40

Finding the Fourth Proportional to 89,179,969.80, 133,769,954.70 and 28,601,819.40

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Solution

The fourth proportional to 89,179,969.80, 133,769,954.70 and 28,601,819.40 is: 42,902,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,179,969.80 : 133,769,954.70 = 28,601,819.40 : x
  2. Step 2: Convert to fraction form
    89,179,969.80/133,769,954.70 = 28,601,819.40/x
  3. Step 3: Cross multiply
    89,179,969.80x = 133,769,954.70 × 28,601,819.40
  4. Step 4: Simplify right side
    89,179,969.80x = 3,826,064,085,475,581
  5. Step 5: Solve for x
    x = 3,826,064,085,475,581/89,179,969.80
  6. Step 6: Final answer
    x = 42,902,729.10

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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.