Home / 784,892,185.76-1,082,810,872.51-467,174,280.41

Finding the Fourth Proportional to 784,892,185.76, 1,082,810,872.51 and 467,174,280.41

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Solution

The fourth proportional to 784,892,185.76, 1,082,810,872.51 and 467,174,280.41 is: 644,497,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,892,185.76 : 1,082,810,872.51 = 467,174,280.41 : x
  2. Step 2: Convert to fraction form
    784,892,185.76/1,082,810,872.51 = 467,174,280.41/x
  3. Step 3: Cross multiply
    784,892,185.76x = 1,082,810,872.51 × 467,174,280.41
  4. Step 4: Simplify right side
    784,892,185.76x = 505,861,390,178,401,472
  5. Step 5: Solve for x
    x = 505,861,390,178,401,472/784,892,185.76
  6. Step 6: Final answer
    x = 644,497,931.51

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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.