Home / 139,913,072.52-193,078,961.23-77,191,813.86

Finding the Fourth Proportional to 139,913,072.52, 193,078,961.23 and 77,191,813.86

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Solution

The fourth proportional to 139,913,072.52, 193,078,961.23 and 77,191,813.86 is: 106,524,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,913,072.52 : 193,078,961.23 = 77,191,813.86 : x
  2. Step 2: Convert to fraction form
    139,913,072.52/193,078,961.23 = 77,191,813.86/x
  3. Step 3: Cross multiply
    139,913,072.52x = 193,078,961.23 × 77,191,813.86
  4. Step 4: Simplify right side
    139,913,072.52x = 14,904,115,235,548,316
  5. Step 5: Solve for x
    x = 14,904,115,235,548,316/139,913,072.52
  6. Step 6: Final answer
    x = 106,524,107.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.