Home / 19,184,911.20-28,752,872.40-7,812,511.20

Finding the Fourth Proportional to 19,184,911.20, 28,752,872.40 and 7,812,511.20

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Solution

The fourth proportional to 19,184,911.20, 28,752,872.40 and 7,812,511.20 is: 11,708,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184,911.20 : 28,752,872.40 = 7,812,511.20 : x
  2. Step 2: Convert to fraction form
    19,184,911.20/28,752,872.40 = 7,812,511.20/x
  3. Step 3: Cross multiply
    19,184,911.20x = 28,752,872.40 × 7,812,511.20
  4. Step 4: Simplify right side
    19,184,911.20x = 224,632,137,657,170.88
  5. Step 5: Solve for x
    x = 224,632,137,657,170.88/19,184,911.20
  6. Step 6: Final answer
    x = 11,708,792.15

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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.