Home / 18,783,041.20-28,174,561.80-9,193,483.60

Finding the Fourth Proportional to 18,783,041.20, 28,174,561.80 and 9,193,483.60

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Solution

The fourth proportional to 18,783,041.20, 28,174,561.80 and 9,193,483.60 is: 13,790,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,041.20 : 28,174,561.80 = 9,193,483.60 : x
  2. Step 2: Convert to fraction form
    18,783,041.20/28,174,561.80 = 9,193,483.60/x
  3. Step 3: Cross multiply
    18,783,041.20x = 28,174,561.80 × 9,193,483.60
  4. Step 4: Simplify right side
    18,783,041.20x = 259,022,371,845,486.47
  5. Step 5: Solve for x
    x = 259,022,371,845,486.47/18,783,041.20
  6. Step 6: Final answer
    x = 13,790,225.40

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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.