Home / 6,721,280,147.80-10,081,920,221.70-3,621,916,235.80

Finding the Fourth Proportional to 6,721,280,147.80, 10,081,920,221.70 and 3,621,916,235.80

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Solution

The fourth proportional to 6,721,280,147.80, 10,081,920,221.70 and 3,621,916,235.80 is: 5,432,874,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721,280,147.80 : 10,081,920,221.70 = 3,621,916,235.80 : x
  2. Step 2: Convert to fraction form
    6,721,280,147.80/10,081,920,221.70 = 3,621,916,235.80/x
  3. Step 3: Cross multiply
    6,721,280,147.80x = 10,081,920,221.70 × 3,621,916,235.80
  4. Step 4: Simplify right side
    6,721,280,147.80x = 36,515,870,539,015,569,408
  5. Step 5: Solve for x
    x = 36,515,870,539,015,569,408/6,721,280,147.80
  6. Step 6: Final answer
    x = 5,432,874,353.70

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Double scale
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Similar ratio
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1.5x scale

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.