Home / 18,709,081.40-28,063,622.10-7,345,753.40

Finding the Fourth Proportional to 18,709,081.40, 28,063,622.10 and 7,345,753.40

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Solution

The fourth proportional to 18,709,081.40, 28,063,622.10 and 7,345,753.40 is: 11,018,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,081.40 : 28,063,622.10 = 7,345,753.40 : x
  2. Step 2: Convert to fraction form
    18,709,081.40/28,063,622.10 = 7,345,753.40/x
  3. Step 3: Cross multiply
    18,709,081.40x = 28,063,622.10 × 7,345,753.40
  4. Step 4: Simplify right side
    18,709,081.40x = 206,148,447,457,390.16
  5. Step 5: Solve for x
    x = 206,148,447,457,390.16/18,709,081.40
  6. Step 6: Final answer
    x = 11,018,630.10

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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.