Home / 89,820,072.70-134,730,109.05-80,750,146.30

Finding the Fourth Proportional to 89,820,072.70, 134,730,109.05 and 80,750,146.30

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Solution

The fourth proportional to 89,820,072.70, 134,730,109.05 and 80,750,146.30 is: 121,125,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820,072.70 : 134,730,109.05 = 80,750,146.30 : x
  2. Step 2: Convert to fraction form
    89,820,072.70/134,730,109.05 = 80,750,146.30/x
  3. Step 3: Cross multiply
    89,820,072.70x = 134,730,109.05 × 80,750,146.30
  4. Step 4: Simplify right side
    89,820,072.70x = 10,879,476,016,802,454
  5. Step 5: Solve for x
    x = 10,879,476,016,802,454/89,820,072.70
  6. Step 6: Final answer
    x = 121,125,219.45

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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.