Home / 19,116,150.40-28,626,986.40-12,691,619.20

Finding the Fourth Proportional to 19,116,150.40, 28,626,986.40 and 12,691,619.20

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Solution

The fourth proportional to 19,116,150.40, 28,626,986.40 and 12,691,619.20 is: 19,006,065.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116,150.40 : 28,626,986.40 = 12,691,619.20 : x
  2. Step 2: Convert to fraction form
    19,116,150.40/28,626,986.40 = 12,691,619.20/x
  3. Step 3: Cross multiply
    19,116,150.40x = 28,626,986.40 × 12,691,619.20
  4. Step 4: Simplify right side
    19,116,150.40x = 363,322,810,232,378.81
  5. Step 5: Solve for x
    x = 363,322,810,232,378.81/19,116,150.40
  6. Step 6: Final answer
    x = 19,006,065.69

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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.