Home / 193,416,021.84-266,920,661-105,313,436.40

Finding the Fourth Proportional to 193,416,021.84, 266,920,661 and 105,313,436.40

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Solution

The fourth proportional to 193,416,021.84, 266,920,661 and 105,313,436.40 is: 145,336,109.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,416,021.84 : 266,920,661 = 105,313,436.40 : x
  2. Step 2: Convert to fraction form
    193,416,021.84/266,920,661 = 105,313,436.40/x
  3. Step 3: Cross multiply
    193,416,021.84x = 266,920,661 × 105,313,436.40
  4. Step 4: Simplify right side
    193,416,021.84x = 28,110,332,056,069,460
  5. Step 5: Solve for x
    x = 28,110,332,056,069,460/193,416,021.84
  6. Step 6: Final answer
    x = 145,336,109.12

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1.5x scale

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.