Home / 459,663,391.20-689,495,086.80-402,267,763.20

Finding the Fourth Proportional to 459,663,391.20, 689,495,086.80 and 402,267,763.20

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Solution

The fourth proportional to 459,663,391.20, 689,495,086.80 and 402,267,763.20 is: 603,401,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,663,391.20 : 689,495,086.80 = 402,267,763.20 : x
  2. Step 2: Convert to fraction form
    459,663,391.20/689,495,086.80 = 402,267,763.20/x
  3. Step 3: Cross multiply
    459,663,391.20x = 689,495,086.80 × 402,267,763.20
  4. Step 4: Simplify right side
    459,663,391.20x = 277,361,646,304,425,824
  5. Step 5: Solve for x
    x = 277,361,646,304,425,824/459,663,391.20
  6. Step 6: Final answer
    x = 603,401,644.80

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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.