Home / 28,143,501.20-42,215,251.80-19,185,549.20

Finding the Fourth Proportional to 28,143,501.20, 42,215,251.80 and 19,185,549.20

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Solution

The fourth proportional to 28,143,501.20, 42,215,251.80 and 19,185,549.20 is: 28,778,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143,501.20 : 42,215,251.80 = 19,185,549.20 : x
  2. Step 2: Convert to fraction form
    28,143,501.20/42,215,251.80 = 19,185,549.20/x
  3. Step 3: Cross multiply
    28,143,501.20x = 42,215,251.80 × 19,185,549.20
  4. Step 4: Simplify right side
    28,143,501.20x = 809,922,790,399,288.50
  5. Step 5: Solve for x
    x = 809,922,790,399,288.50/28,143,501.20
  6. Step 6: Final answer
    x = 28,778,323.80

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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.