Home / 72,005,102.20-99,356,351.77-43,732,762.77

Finding the Fourth Proportional to 72,005,102.20, 99,356,351.77 and 43,732,762.77

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Solution

The fourth proportional to 72,005,102.20, 99,356,351.77 and 43,732,762.77 is: 60,344,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,005,102.20 : 99,356,351.77 = 43,732,762.77 : x
  2. Step 2: Convert to fraction form
    72,005,102.20/99,356,351.77 = 43,732,762.77/x
  3. Step 3: Cross multiply
    72,005,102.20x = 99,356,351.77 × 43,732,762.77
  4. Step 4: Simplify right side
    72,005,102.20x = 4,345,127,761,153,297.50
  5. Step 5: Solve for x
    x = 4,345,127,761,153,297.50/72,005,102.20
  6. Step 6: Final answer
    x = 60,344,720.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.