Home / 207,012,145,624.10-310,518,218,436.15-198,885,491,569.70

Finding the Fourth Proportional to 207,012,145,624.10, 310,518,218,436.15 and 198,885,491,569.70

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Solution

The fourth proportional to 207,012,145,624.10, 310,518,218,436.15 and 198,885,491,569.70 is: 298,328,237,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,012,145,624.10 : 310,518,218,436.15 = 198,885,491,569.70 : x
  2. Step 2: Convert to fraction form
    207,012,145,624.10/310,518,218,436.15 = 198,885,491,569.70/x
  3. Step 3: Cross multiply
    207,012,145,624.10x = 310,518,218,436.15 × 198,885,491,569.70
  4. Step 4: Simplify right side
    207,012,145,624.10x = 61,757,568,515,021,184,434,176
  5. Step 5: Solve for x
    x = 61,757,568,515,021,184,434,176/207,012,145,624.10
  6. Step 6: Final answer
    x = 298,328,237,354.55

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Double scale
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1.5x scale

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.