Home / 89,074,490.80-133,611,736.20-78,303,953.20

Finding the Fourth Proportional to 89,074,490.80, 133,611,736.20 and 78,303,953.20

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Solution

The fourth proportional to 89,074,490.80, 133,611,736.20 and 78,303,953.20 is: 117,455,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,074,490.80 : 133,611,736.20 = 78,303,953.20 : x
  2. Step 2: Convert to fraction form
    89,074,490.80/133,611,736.20 = 78,303,953.20/x
  3. Step 3: Cross multiply
    89,074,490.80x = 133,611,736.20 × 78,303,953.20
  4. Step 4: Simplify right side
    89,074,490.80x = 10,462,327,138,375,546
  5. Step 5: Solve for x
    x = 10,462,327,138,375,546/89,074,490.80
  6. Step 6: Final answer
    x = 117,455,929.80

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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.