Home / 7,872,897.20-11,809,345.80-7,201,050.80

Finding the Fourth Proportional to 7,872,897.20, 11,809,345.80 and 7,201,050.80

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Solution

The fourth proportional to 7,872,897.20, 11,809,345.80 and 7,201,050.80 is: 10,801,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872,897.20 : 11,809,345.80 = 7,201,050.80 : x
  2. Step 2: Convert to fraction form
    7,872,897.20/11,809,345.80 = 7,201,050.80/x
  3. Step 3: Cross multiply
    7,872,897.20x = 11,809,345.80 × 7,201,050.80
  4. Step 4: Simplify right side
    7,872,897.20x = 85,039,699,020,566.64
  5. Step 5: Solve for x
    x = 85,039,699,020,566.64/7,872,897.20
  6. Step 6: Final answer
    x = 10,801,576.20

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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.