Home / 89,629,544.80-134,145,718.80-78,880,002.40

Finding the Fourth Proportional to 89,629,544.80, 134,145,718.80 and 78,880,002.40

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Solution

The fourth proportional to 89,629,544.80, 134,145,718.80 and 78,880,002.40 is: 118,057,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,629,544.80 : 134,145,718.80 = 78,880,002.40 : x
  2. Step 2: Convert to fraction form
    89,629,544.80/134,145,718.80 = 78,880,002.40/x
  3. Step 3: Cross multiply
    89,629,544.80x = 134,145,718.80 × 78,880,002.40
  4. Step 4: Simplify right side
    89,629,544.80x = 10,581,414,620,893,726
  5. Step 5: Solve for x
    x = 10,581,414,620,893,726/89,629,544.80
  6. Step 6: Final answer
    x = 118,057,217.01

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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.