Home / 13,178,618.70-18,186,353.59-7,377,448.11

Finding the Fourth Proportional to 13,178,618.70, 18,186,353.59 and 7,377,448.11

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Solution

The fourth proportional to 13,178,618.70, 18,186,353.59 and 7,377,448.11 is: 10,180,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,618.70 : 18,186,353.59 = 7,377,448.11 : x
  2. Step 2: Convert to fraction form
    13,178,618.70/18,186,353.59 = 7,377,448.11/x
  3. Step 3: Cross multiply
    13,178,618.70x = 18,186,353.59 × 7,377,448.11
  4. Step 4: Simplify right side
    13,178,618.70x = 134,168,879,920,337.22
  5. Step 5: Solve for x
    x = 134,168,879,920,337.22/13,178,618.70
  6. Step 6: Final answer
    x = 10,180,799.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.