Home / 85,421,905.32-128,179,503.99-36,230,106.90

Finding the Fourth Proportional to 85,421,905.32, 128,179,503.99 and 36,230,106.90

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Solution

The fourth proportional to 85,421,905.32, 128,179,503.99 and 36,230,106.90 is: 54,364,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,421,905.32 : 128,179,503.99 = 36,230,106.90 : x
  2. Step 2: Convert to fraction form
    85,421,905.32/128,179,503.99 = 36,230,106.90/x
  3. Step 3: Cross multiply
    85,421,905.32x = 128,179,503.99 × 36,230,106.90
  4. Step 4: Simplify right side
    85,421,905.32x = 4,643,957,131,946,676
  5. Step 5: Solve for x
    x = 4,643,957,131,946,676/85,421,905.32
  6. Step 6: Final answer
    x = 54,364,944.38

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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.