Home / 19,119,977.55-28,688,443.36-10,019,911.57

Finding the Fourth Proportional to 19,119,977.55, 28,688,443.36 and 10,019,911.57

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Solution

The fourth proportional to 19,119,977.55, 28,688,443.36 and 10,019,911.57 is: 15,034,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119,977.55 : 28,688,443.36 = 10,019,911.57 : x
  2. Step 2: Convert to fraction form
    19,119,977.55/28,688,443.36 = 10,019,911.57/x
  3. Step 3: Cross multiply
    19,119,977.55x = 28,688,443.36 × 10,019,911.57
  4. Step 4: Simplify right side
    19,119,977.55x = 287,455,665,451,382.81
  5. Step 5: Solve for x
    x = 287,455,665,451,382.81/19,119,977.55
  6. Step 6: Final answer
    x = 15,034,309.78

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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.