Home / 11,520,430.40-17,280,645.60-11,028,987.20

Finding the Fourth Proportional to 11,520,430.40, 17,280,645.60 and 11,028,987.20

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Solution

The fourth proportional to 11,520,430.40, 17,280,645.60 and 11,028,987.20 is: 16,543,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520,430.40 : 17,280,645.60 = 11,028,987.20 : x
  2. Step 2: Convert to fraction form
    11,520,430.40/17,280,645.60 = 11,028,987.20/x
  3. Step 3: Cross multiply
    11,520,430.40x = 17,280,645.60 × 11,028,987.20
  4. Step 4: Simplify right side
    11,520,430.40x = 190,588,019,130,136.31
  5. Step 5: Solve for x
    x = 190,588,019,130,136.31/11,520,430.40
  6. Step 6: Final answer
    x = 16,543,480.80

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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.