Home / 420,738,834.92-580,677,271.02-242,119,052.42

Finding the Fourth Proportional to 420,738,834.92, 580,677,271.02 and 242,119,052.42

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Solution

The fourth proportional to 420,738,834.92, 580,677,271.02 and 242,119,052.42 is: 334,157,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,738,834.92 : 580,677,271.02 = 242,119,052.42 : x
  2. Step 2: Convert to fraction form
    420,738,834.92/580,677,271.02 = 242,119,052.42/x
  3. Step 3: Cross multiply
    420,738,834.92x = 580,677,271.02 × 242,119,052.42
  4. Step 4: Simplify right side
    420,738,834.92x = 140,593,030,621,193,920
  5. Step 5: Solve for x
    x = 140,593,030,621,193,920/420,738,834.92
  6. Step 6: Final answer
    x = 334,157,484.29

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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.