Home / 19,153,470.90-28,682,967.15-12,728,939.70

Finding the Fourth Proportional to 19,153,470.90, 28,682,967.15 and 12,728,939.70

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Solution

The fourth proportional to 19,153,470.90, 28,682,967.15 and 12,728,939.70 is: 19,062,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,153,470.90 : 28,682,967.15 = 12,728,939.70 : x
  2. Step 2: Convert to fraction form
    19,153,470.90/28,682,967.15 = 12,728,939.70/x
  3. Step 3: Cross multiply
    19,153,470.90x = 28,682,967.15 × 12,728,939.70
  4. Step 4: Simplify right side
    19,153,470.90x = 365,103,759,269,430.81
  5. Step 5: Solve for x
    x = 365,103,759,269,430.81/19,153,470.90
  6. Step 6: Final answer
    x = 19,062,015.50

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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.