Home / 89,179,972.80-133,769,959.20-28,601,822.40

Finding the Fourth Proportional to 89,179,972.80, 133,769,959.20 and 28,601,822.40

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Solution

The fourth proportional to 89,179,972.80, 133,769,959.20 and 28,601,822.40 is: 42,902,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,179,972.80 : 133,769,959.20 = 28,601,822.40 : x
  2. Step 2: Convert to fraction form
    89,179,972.80/133,769,959.20 = 28,601,822.40/x
  3. Step 3: Cross multiply
    89,179,972.80x = 133,769,959.20 × 28,601,822.40
  4. Step 4: Simplify right side
    89,179,972.80x = 3,826,064,615,493,646
  5. Step 5: Solve for x
    x = 3,826,064,615,493,646/89,179,972.80
  6. Step 6: Final answer
    x = 42,902,733.60

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1.5x scale

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.