Home / 430,156,264.20-644,040,002.70-418,212,328.20

Finding the Fourth Proportional to 430,156,264.20, 644,040,002.70 and 418,212,328.20

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Solution

The fourth proportional to 430,156,264.20, 644,040,002.70 and 418,212,328.20 is: 626,157,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,156,264.20 : 644,040,002.70 = 418,212,328.20 : x
  2. Step 2: Convert to fraction form
    430,156,264.20/644,040,002.70 = 418,212,328.20/x
  3. Step 3: Cross multiply
    430,156,264.20x = 644,040,002.70 × 418,212,328.20
  4. Step 4: Simplify right side
    430,156,264.20x = 269,345,468,983,101,312
  5. Step 5: Solve for x
    x = 269,345,468,983,101,312/430,156,264.20
  6. Step 6: Final answer
    x = 626,157,262.84

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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.