Home / 70,080,738.96-105,121,367.16-21,558,256.72

Finding the Fourth Proportional to 70,080,738.96, 105,121,367.16 and 21,558,256.72

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Solution

The fourth proportional to 70,080,738.96, 105,121,367.16 and 21,558,256.72 is: 32,337,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,080,738.96 : 105,121,367.16 = 21,558,256.72 : x
  2. Step 2: Convert to fraction form
    70,080,738.96/105,121,367.16 = 21,558,256.72/x
  3. Step 3: Cross multiply
    70,080,738.96x = 105,121,367.16 × 21,558,256.72
  4. Step 4: Simplify right side
    70,080,738.96x = 2,266,233,419,992,657
  5. Step 5: Solve for x
    x = 2,266,233,419,992,657/70,080,738.96
  6. Step 6: Final answer
    x = 32,337,464.67

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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.