Home / 19,171,054.20-28,772,910.90-7,819,649.40

Finding the Fourth Proportional to 19,171,054.20, 28,772,910.90 and 7,819,649.40

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Solution

The fourth proportional to 19,171,054.20, 28,772,910.90 and 7,819,649.40 is: 11,736,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171,054.20 : 28,772,910.90 = 7,819,649.40 : x
  2. Step 2: Convert to fraction form
    19,171,054.20/28,772,910.90 = 7,819,649.40/x
  3. Step 3: Cross multiply
    19,171,054.20x = 28,772,910.90 × 7,819,649.40
  4. Step 4: Simplify right side
    19,171,054.20x = 224,994,075,455,438.47
  5. Step 5: Solve for x
    x = 224,994,075,455,438.47/19,171,054.20
  6. Step 6: Final answer
    x = 11,736,134.75

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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.