Home / 425,644,901.20-638,467,351.80-416,078,963.20

Finding the Fourth Proportional to 425,644,901.20, 638,467,351.80 and 416,078,963.20

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Solution

The fourth proportional to 425,644,901.20, 638,467,351.80 and 416,078,963.20 is: 624,118,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,644,901.20 : 638,467,351.80 = 416,078,963.20 : x
  2. Step 2: Convert to fraction form
    425,644,901.20/638,467,351.80 = 416,078,963.20/x
  3. Step 3: Cross multiply
    425,644,901.20x = 638,467,351.80 × 416,078,963.20
  4. Step 4: Simplify right side
    425,644,901.20x = 265,652,833,773,993,632
  5. Step 5: Solve for x
    x = 265,652,833,773,993,632/425,644,901.20
  6. Step 6: Final answer
    x = 624,118,444.80

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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.