Home / 12,456,003.20-18,698,001.60-9,628,649.60

Finding the Fourth Proportional to 12,456,003.20, 18,698,001.60 and 9,628,649.60

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Solution

The fourth proportional to 12,456,003.20, 18,698,001.60 and 9,628,649.60 is: 14,453,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,003.20 : 18,698,001.60 = 9,628,649.60 : x
  2. Step 2: Convert to fraction form
    12,456,003.20/18,698,001.60 = 9,628,649.60/x
  3. Step 3: Cross multiply
    12,456,003.20x = 18,698,001.60 × 9,628,649.60
  4. Step 4: Simplify right side
    12,456,003.20x = 180,036,505,626,639.38
  5. Step 5: Solve for x
    x = 180,036,505,626,639.38/12,456,003.20
  6. Step 6: Final answer
    x = 14,453,794.11

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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.