Home / 312,093,237.60-430,391,472.48-186,624,999.72

Finding the Fourth Proportional to 312,093,237.60, 430,391,472.48 and 186,624,999.72

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Solution

The fourth proportional to 312,093,237.60, 430,391,472.48 and 186,624,999.72 is: 257,364,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,093,237.60 : 430,391,472.48 = 186,624,999.72 : x
  2. Step 2: Convert to fraction form
    312,093,237.60/430,391,472.48 = 186,624,999.72/x
  3. Step 3: Cross multiply
    312,093,237.60x = 430,391,472.48 × 186,624,999.72
  4. Step 4: Simplify right side
    312,093,237.60x = 80,321,808,431,070,384
  5. Step 5: Solve for x
    x = 80,321,808,431,070,384/312,093,237.60
  6. Step 6: Final answer
    x = 257,364,783.19

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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.