Home / 19,159,310.40-28,738,965.60-12,356,865.60

Finding the Fourth Proportional to 19,159,310.40, 28,738,965.60 and 12,356,865.60

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Solution

The fourth proportional to 19,159,310.40, 28,738,965.60 and 12,356,865.60 is: 18,535,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159,310.40 : 28,738,965.60 = 12,356,865.60 : x
  2. Step 2: Convert to fraction form
    19,159,310.40/28,738,965.60 = 12,356,865.60/x
  3. Step 3: Cross multiply
    19,159,310.40x = 28,738,965.60 × 12,356,865.60
  4. Step 4: Simplify right side
    19,159,310.40x = 355,123,535,402,223.38
  5. Step 5: Solve for x
    x = 355,123,535,402,223.38/19,159,310.40
  6. Step 6: Final answer
    x = 18,535,298.40

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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.