Home / 19,968,015.40-29,952,023.10-12,303,989.80

Finding the Fourth Proportional to 19,968,015.40, 29,952,023.10 and 12,303,989.80

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Solution

The fourth proportional to 19,968,015.40, 29,952,023.10 and 12,303,989.80 is: 18,455,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968,015.40 : 29,952,023.10 = 12,303,989.80 : x
  2. Step 2: Convert to fraction form
    19,968,015.40/29,952,023.10 = 12,303,989.80/x
  3. Step 3: Cross multiply
    19,968,015.40x = 29,952,023.10 × 12,303,989.80
  4. Step 4: Simplify right side
    19,968,015.40x = 368,529,386,711,764.44
  5. Step 5: Solve for x
    x = 368,529,386,711,764.44/19,968,015.40
  6. Step 6: Final answer
    x = 18,455,984.70

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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.