Home / 8,305,365.10-12,458,047.65-7,801,480.30

Finding the Fourth Proportional to 8,305,365.10, 12,458,047.65 and 7,801,480.30

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Solution

The fourth proportional to 8,305,365.10, 12,458,047.65 and 7,801,480.30 is: 11,702,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,365.10 : 12,458,047.65 = 7,801,480.30 : x
  2. Step 2: Convert to fraction form
    8,305,365.10/12,458,047.65 = 7,801,480.30/x
  3. Step 3: Cross multiply
    8,305,365.10x = 12,458,047.65 × 7,801,480.30
  4. Step 4: Simplify right side
    8,305,365.10x = 97,191,213,317,936.30
  5. Step 5: Solve for x
    x = 97,191,213,317,936.30/8,305,365.10
  6. Step 6: Final answer
    x = 11,702,220.45

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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.