Home / 18,783,065.40-28,174,598.10-5,319,893.40

Finding the Fourth Proportional to 18,783,065.40, 28,174,598.10 and 5,319,893.40

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Solution

The fourth proportional to 18,783,065.40, 28,174,598.10 and 5,319,893.40 is: 7,979,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,065.40 : 28,174,598.10 = 5,319,893.40 : x
  2. Step 2: Convert to fraction form
    18,783,065.40/28,174,598.10 = 5,319,893.40/x
  3. Step 3: Cross multiply
    18,783,065.40x = 28,174,598.10 × 5,319,893.40
  4. Step 4: Simplify right side
    18,783,065.40x = 149,885,858,479,842.56
  5. Step 5: Solve for x
    x = 149,885,858,479,842.56/18,783,065.40
  6. Step 6: Final answer
    x = 7,979,840.10

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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.