Home / 420,738,835.92-580,677,272.40-242,119,053.42

Finding the Fourth Proportional to 420,738,835.92, 580,677,272.40 and 242,119,053.42

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Solution

The fourth proportional to 420,738,835.92, 580,677,272.40 and 242,119,053.42 is: 334,157,485.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,738,835.92 : 580,677,272.40 = 242,119,053.42 : x
  2. Step 2: Convert to fraction form
    420,738,835.92/580,677,272.40 = 242,119,053.42/x
  3. Step 3: Cross multiply
    420,738,835.92x = 580,677,272.40 × 242,119,053.42
  4. Step 4: Simplify right side
    420,738,835.92x = 140,593,031,535,995,472
  5. Step 5: Solve for x
    x = 140,593,031,535,995,472/420,738,835.92
  6. Step 6: Final answer
    x = 334,157,485.67

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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.