Home / 820,507,337.20-1,230,761,005.80-246,078,665.20

Finding the Fourth Proportional to 820,507,337.20, 1,230,761,005.80 and 246,078,665.20

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Solution

The fourth proportional to 820,507,337.20, 1,230,761,005.80 and 246,078,665.20 is: 369,117,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,507,337.20 : 1,230,761,005.80 = 246,078,665.20 : x
  2. Step 2: Convert to fraction form
    820,507,337.20/1,230,761,005.80 = 246,078,665.20/x
  3. Step 3: Cross multiply
    820,507,337.20x = 1,230,761,005.80 × 246,078,665.20
  4. Step 4: Simplify right side
    820,507,337.20x = 302,864,025,487,473,408
  5. Step 5: Solve for x
    x = 302,864,025,487,473,408/820,507,337.20
  6. Step 6: Final answer
    x = 369,117,997.80

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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.