Home / 19,162,688.10-28,753,009.11-8,378,602.98

Finding the Fourth Proportional to 19,162,688.10, 28,753,009.11 and 8,378,602.98

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Solution

The fourth proportional to 19,162,688.10, 28,753,009.11 and 8,378,602.98 is: 12,571,829.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162,688.10 : 28,753,009.11 = 8,378,602.98 : x
  2. Step 2: Convert to fraction form
    19,162,688.10/28,753,009.11 = 8,378,602.98/x
  3. Step 3: Cross multiply
    19,162,688.10x = 28,753,009.11 × 8,378,602.98
  4. Step 4: Simplify right side
    19,162,688.10x = 240,910,047,813,013.16
  5. Step 5: Solve for x
    x = 240,910,047,813,013.16/19,162,688.10
  6. Step 6: Final answer
    x = 12,571,829.51

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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.