Home / 28,269,637.20-42,404,455.80-19,311,685.20

Finding the Fourth Proportional to 28,269,637.20, 42,404,455.80 and 19,311,685.20

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Solution

The fourth proportional to 28,269,637.20, 42,404,455.80 and 19,311,685.20 is: 28,967,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269,637.20 : 42,404,455.80 = 19,311,685.20 : x
  2. Step 2: Convert to fraction form
    28,269,637.20/42,404,455.80 = 19,311,685.20/x
  3. Step 3: Cross multiply
    28,269,637.20x = 42,404,455.80 × 19,311,685.20
  4. Step 4: Simplify right side
    28,269,637.20x = 818,901,501,486,914.12
  5. Step 5: Solve for x
    x = 818,901,501,486,914.12/28,269,637.20
  6. Step 6: Final answer
    x = 28,967,527.80

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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.