Home / 18,746,511.40-28,054,448.70-11,178,908.20

Finding the Fourth Proportional to 18,746,511.40, 28,054,448.70 and 11,178,908.20

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Solution

The fourth proportional to 18,746,511.40, 28,054,448.70 and 11,178,908.20 is: 16,729,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746,511.40 : 28,054,448.70 = 11,178,908.20 : x
  2. Step 2: Convert to fraction form
    18,746,511.40/28,054,448.70 = 11,178,908.20/x
  3. Step 3: Cross multiply
    18,746,511.40x = 28,054,448.70 × 11,178,908.20
  4. Step 4: Simplify right side
    18,746,511.40x = 313,618,106,618,909.31
  5. Step 5: Solve for x
    x = 313,618,106,618,909.31/18,746,511.40
  6. Step 6: Final answer
    x = 16,729,411.67

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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.