Home / 20,853,461.84-31,280,130.19-5,291,260.30

Finding the Fourth Proportional to 20,853,461.84, 31,280,130.19 and 5,291,260.30

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Solution

The fourth proportional to 20,853,461.84, 31,280,130.19 and 5,291,260.30 is: 7,936,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,461.84 : 31,280,130.19 = 5,291,260.30 : x
  2. Step 2: Convert to fraction form
    20,853,461.84/31,280,130.19 = 5,291,260.30/x
  3. Step 3: Cross multiply
    20,853,461.84x = 31,280,130.19 × 5,291,260.30
  4. Step 4: Simplify right side
    20,853,461.84x = 165,511,310,870,321.50
  5. Step 5: Solve for x
    x = 165,511,310,870,321.50/20,853,461.84
  6. Step 6: Final answer
    x = 7,936,874.57

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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.