Home / 8,085,308.90-12,127,963.35-7,089,980.90

Finding the Fourth Proportional to 8,085,308.90, 12,127,963.35 and 7,089,980.90

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Solution

The fourth proportional to 8,085,308.90, 12,127,963.35 and 7,089,980.90 is: 10,634,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,308.90 : 12,127,963.35 = 7,089,980.90 : x
  2. Step 2: Convert to fraction form
    8,085,308.90/12,127,963.35 = 7,089,980.90/x
  3. Step 3: Cross multiply
    8,085,308.90x = 12,127,963.35 × 7,089,980.90
  4. Step 4: Simplify right side
    8,085,308.90x = 85,987,028,507,400.02
  5. Step 5: Solve for x
    x = 85,987,028,507,400.02/8,085,308.90
  6. Step 6: Final answer
    x = 10,634,971.35

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Half scale
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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.