Home / 18,850,809.60-28,276,214.40-12,393,801.45

Finding the Fourth Proportional to 18,850,809.60, 28,276,214.40 and 12,393,801.45

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Solution

The fourth proportional to 18,850,809.60, 28,276,214.40 and 12,393,801.45 is: 18,590,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850,809.60 : 28,276,214.40 = 12,393,801.45 : x
  2. Step 2: Convert to fraction form
    18,850,809.60/28,276,214.40 = 12,393,801.45/x
  3. Step 3: Cross multiply
    18,850,809.60x = 28,276,214.40 × 12,393,801.45
  4. Step 4: Simplify right side
    18,850,809.60x = 350,449,787,031,230.81
  5. Step 5: Solve for x
    x = 350,449,787,031,230.81/18,850,809.60
  6. Step 6: Final answer
    x = 18,590,702.18

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1.5x scale

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.