Home / 430,178,649.86-642,819,083.50-323,002,144.19

Finding the Fourth Proportional to 430,178,649.86, 642,819,083.50 and 323,002,144.19

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Solution

The fourth proportional to 430,178,649.86, 642,819,083.50 and 323,002,144.19 is: 482,664,452.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,178,649.86 : 642,819,083.50 = 323,002,144.19 : x
  2. Step 2: Convert to fraction form
    430,178,649.86/642,819,083.50 = 323,002,144.19/x
  3. Step 3: Cross multiply
    430,178,649.86x = 642,819,083.50 × 323,002,144.19
  4. Step 4: Simplify right side
    430,178,649.86x = 207,631,942,298,761,472
  5. Step 5: Solve for x
    x = 207,631,942,298,761,472/430,178,649.86
  6. Step 6: Final answer
    x = 482,664,452.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.