Home / 430,157,737.20-644,042,212.20-418,213,801.20

Finding the Fourth Proportional to 430,157,737.20, 644,042,212.20 and 418,213,801.20

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Solution

The fourth proportional to 430,157,737.20, 644,042,212.20 and 418,213,801.20 is: 626,159,472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,157,737.20 : 644,042,212.20 = 418,213,801.20 : x
  2. Step 2: Convert to fraction form
    430,157,737.20/644,042,212.20 = 418,213,801.20/x
  3. Step 3: Cross multiply
    430,157,737.20x = 644,042,212.20 × 418,213,801.20
  4. Step 4: Simplify right side
    430,157,737.20x = 269,347,341,697,419,040
  5. Step 5: Solve for x
    x = 269,347,341,697,419,040/430,157,737.20
  6. Step 6: Final answer
    x = 626,159,472.22

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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.