Home / 312,532,263.65-431,302,443.06-171,409,102.85

Finding the Fourth Proportional to 312,532,263.65, 431,302,443.06 and 171,409,102.85

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Solution

The fourth proportional to 312,532,263.65, 431,302,443.06 and 171,409,102.85 is: 236,548,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,532,263.65 : 431,302,443.06 = 171,409,102.85 : x
  2. Step 2: Convert to fraction form
    312,532,263.65/431,302,443.06 = 171,409,102.85/x
  3. Step 3: Cross multiply
    312,532,263.65x = 431,302,443.06 × 171,409,102.85
  4. Step 4: Simplify right side
    312,532,263.65x = 73,929,164,819,771,296
  5. Step 5: Solve for x
    x = 73,929,164,819,771,296/312,532,263.65
  6. Step 6: Final answer
    x = 236,548,905.25

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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.