Home / 28,066,672.80-42,100,009.20-19,457,328.60

Finding the Fourth Proportional to 28,066,672.80, 42,100,009.20 and 19,457,328.60

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Solution

The fourth proportional to 28,066,672.80, 42,100,009.20 and 19,457,328.60 is: 29,185,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,672.80 : 42,100,009.20 = 19,457,328.60 : x
  2. Step 2: Convert to fraction form
    28,066,672.80/42,100,009.20 = 19,457,328.60/x
  3. Step 3: Cross multiply
    28,066,672.80x = 42,100,009.20 × 19,457,328.60
  4. Step 4: Simplify right side
    28,066,672.80x = 819,153,713,067,423.25
  5. Step 5: Solve for x
    x = 819,153,713,067,423.25/28,066,672.80
  6. Step 6: Final answer
    x = 29,185,992.90

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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.