Home / 89,808,219.80-134,712,329.70-80,720,578.70

Finding the Fourth Proportional to 89,808,219.80, 134,712,329.70 and 80,720,578.70

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Solution

The fourth proportional to 89,808,219.80, 134,712,329.70 and 80,720,578.70 is: 121,080,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808,219.80 : 134,712,329.70 = 80,720,578.70 : x
  2. Step 2: Convert to fraction form
    89,808,219.80/134,712,329.70 = 80,720,578.70/x
  3. Step 3: Cross multiply
    89,808,219.80x = 134,712,329.70 × 80,720,578.70
  4. Step 4: Simplify right side
    89,808,219.80x = 10,874,057,211,409,196
  5. Step 5: Solve for x
    x = 10,874,057,211,409,196/89,808,219.80
  6. Step 6: Final answer
    x = 121,080,868.05

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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.