Home / 19,171,051.20-28,772,906.40-7,819,646.40

Finding the Fourth Proportional to 19,171,051.20, 28,772,906.40 and 7,819,646.40

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Solution

The fourth proportional to 19,171,051.20, 28,772,906.40 and 7,819,646.40 is: 11,736,130.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171,051.20 : 28,772,906.40 = 7,819,646.40 : x
  2. Step 2: Convert to fraction form
    19,171,051.20/28,772,906.40 = 7,819,646.40/x
  3. Step 3: Cross multiply
    19,171,051.20x = 28,772,906.40 × 7,819,646.40
  4. Step 4: Simplify right side
    19,171,051.20x = 224,993,953,948,296.97
  5. Step 5: Solve for x
    x = 224,993,953,948,296.97/19,171,051.20
  6. Step 6: Final answer
    x = 11,736,130.25

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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.