Home / 685,229,864.08-945,618,412.08-371,964,290.80

Finding the Fourth Proportional to 685,229,864.08, 945,618,412.08 and 371,964,290.80

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Solution

The fourth proportional to 685,229,864.08, 945,618,412.08 and 371,964,290.80 is: 513,311,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,229,864.08 : 945,618,412.08 = 371,964,290.80 : x
  2. Step 2: Convert to fraction form
    685,229,864.08/945,618,412.08 = 371,964,290.80/x
  3. Step 3: Cross multiply
    685,229,864.08x = 945,618,412.08 × 371,964,290.80
  4. Step 4: Simplify right side
    685,229,864.08x = 351,736,282,016,759,360
  5. Step 5: Solve for x
    x = 351,736,282,016,759,360/685,229,864.08
  6. Step 6: Final answer
    x = 513,311,372.51

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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.