Home / 391,206,435.60-586,809,653.40-187,133,091.60

Finding the Fourth Proportional to 391,206,435.60, 586,809,653.40 and 187,133,091.60

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Solution

The fourth proportional to 391,206,435.60, 586,809,653.40 and 187,133,091.60 is: 280,699,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,206,435.60 : 586,809,653.40 = 187,133,091.60 : x
  2. Step 2: Convert to fraction form
    391,206,435.60/586,809,653.40 = 187,133,091.60/x
  3. Step 3: Cross multiply
    391,206,435.60x = 586,809,653.40 × 187,133,091.60
  4. Step 4: Simplify right side
    391,206,435.60x = 109,811,504,621,466,448
  5. Step 5: Solve for x
    x = 109,811,504,621,466,448/391,206,435.60
  6. Step 6: Final answer
    x = 280,699,637.40

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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.