Home / 19,368,007.20-28,989,025.20-15,084,986.40

Finding the Fourth Proportional to 19,368,007.20, 28,989,025.20 and 15,084,986.40

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Solution

The fourth proportional to 19,368,007.20, 28,989,025.20 and 15,084,986.40 is: 22,578,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368,007.20 : 28,989,025.20 = 15,084,986.40 : x
  2. Step 2: Convert to fraction form
    19,368,007.20/28,989,025.20 = 15,084,986.40/x
  3. Step 3: Cross multiply
    19,368,007.20x = 28,989,025.20 × 15,084,986.40
  4. Step 4: Simplify right side
    19,368,007.20x = 437,299,050,891,257.25
  5. Step 5: Solve for x
    x = 437,299,050,891,257.25/19,368,007.20
  6. Step 6: Final answer
    x = 22,578,422.57

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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.