Home / 8,436,728.57-12,659,699.88-3,578,279.35

Finding the Fourth Proportional to 8,436,728.57, 12,659,699.88 and 3,578,279.35

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Solution

The fourth proportional to 8,436,728.57, 12,659,699.88 and 3,578,279.35 is: 5,369,373.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436,728.57 : 12,659,699.88 = 3,578,279.35 : x
  2. Step 2: Convert to fraction form
    8,436,728.57/12,659,699.88 = 3,578,279.35/x
  3. Step 3: Cross multiply
    8,436,728.57x = 12,659,699.88 × 3,578,279.35
  4. Step 4: Simplify right side
    8,436,728.57x = 45,299,942,657,801.48
  5. Step 5: Solve for x
    x = 45,299,942,657,801.48/8,436,728.57
  6. Step 6: Final answer
    x = 5,369,373.01

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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.