Home / 19,116,154.40-28,626,992.40-12,691,623.20

Finding the Fourth Proportional to 19,116,154.40, 28,626,992.40 and 12,691,623.20

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Solution

The fourth proportional to 19,116,154.40, 28,626,992.40 and 12,691,623.20 is: 19,006,071.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116,154.40 : 28,626,992.40 = 12,691,623.20 : x
  2. Step 2: Convert to fraction form
    19,116,154.40/28,626,992.40 = 12,691,623.20/x
  3. Step 3: Cross multiply
    19,116,154.40x = 28,626,992.40 × 12,691,623.20
  4. Step 4: Simplify right side
    19,116,154.40x = 363,323,000,890,063.62
  5. Step 5: Solve for x
    x = 363,323,000,890,063.62/19,116,154.40
  6. Step 6: Final answer
    x = 19,006,071.69

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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.