Home / 19,072,079.20-28,608,118.80-7,102,338.40

Finding the Fourth Proportional to 19,072,079.20, 28,608,118.80 and 7,102,338.40

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Solution

The fourth proportional to 19,072,079.20, 28,608,118.80 and 7,102,338.40 is: 10,653,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072,079.20 : 28,608,118.80 = 7,102,338.40 : x
  2. Step 2: Convert to fraction form
    19,072,079.20/28,608,118.80 = 7,102,338.40/x
  3. Step 3: Cross multiply
    19,072,079.20x = 28,608,118.80 × 7,102,338.40
  4. Step 4: Simplify right side
    19,072,079.20x = 203,184,540,705,001.94
  5. Step 5: Solve for x
    x = 203,184,540,705,001.94/19,072,079.20
  6. Step 6: Final answer
    x = 10,653,507.60

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Similar ratio
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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.