Home / 312,996,130.56-469,343,185.92-131,194,494.72

Finding the Fourth Proportional to 312,996,130.56, 469,343,185.92 and 131,194,494.72

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Solution

The fourth proportional to 312,996,130.56, 469,343,185.92 and 131,194,494.72 is: 196,728,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,996,130.56 : 469,343,185.92 = 131,194,494.72 : x
  2. Step 2: Convert to fraction form
    312,996,130.56/469,343,185.92 = 131,194,494.72/x
  3. Step 3: Cross multiply
    312,996,130.56x = 469,343,185.92 × 131,194,494.72
  4. Step 4: Simplify right side
    312,996,130.56x = 61,575,242,127,049,416
  5. Step 5: Solve for x
    x = 61,575,242,127,049,416/312,996,130.56
  6. Step 6: Final answer
    x = 196,728,445.23

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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.