Home / 20,436,897.44-28,192,364.88-12,698,999.84

Finding the Fourth Proportional to 20,436,897.44, 28,192,364.88 and 12,698,999.84

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Solution

The fourth proportional to 20,436,897.44, 28,192,364.88 and 12,698,999.84 is: 17,518,062.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436,897.44 : 28,192,364.88 = 12,698,999.84 : x
  2. Step 2: Convert to fraction form
    20,436,897.44/28,192,364.88 = 12,698,999.84/x
  3. Step 3: Cross multiply
    20,436,897.44x = 28,192,364.88 × 12,698,999.84
  4. Step 4: Simplify right side
    20,436,897.44x = 358,014,837,100,341.62
  5. Step 5: Solve for x
    x = 358,014,837,100,341.62/20,436,897.44
  6. Step 6: Final answer
    x = 17,518,062.03

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1.5x scale

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.