Home / 206,510,667.72-284,974,470.54-113,689,182.66

Finding the Fourth Proportional to 206,510,667.72, 284,974,470.54 and 113,689,182.66

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Solution

The fourth proportional to 206,510,667.72, 284,974,470.54 and 113,689,182.66 is: 156,885,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,510,667.72 : 284,974,470.54 = 113,689,182.66 : x
  2. Step 2: Convert to fraction form
    206,510,667.72/284,974,470.54 = 113,689,182.66/x
  3. Step 3: Cross multiply
    206,510,667.72x = 284,974,470.54 × 113,689,182.66
  4. Step 4: Simplify right side
    206,510,667.72x = 32,398,514,634,658,852
  5. Step 5: Solve for x
    x = 32,398,514,634,658,852/206,510,667.72
  6. Step 6: Final answer
    x = 156,885,428.69

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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.