Home / 84,769,489.80-127,154,234.70-30,243,643.20

Finding the Fourth Proportional to 84,769,489.80, 127,154,234.70 and 30,243,643.20

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Solution

The fourth proportional to 84,769,489.80, 127,154,234.70 and 30,243,643.20 is: 45,365,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,769,489.80 : 127,154,234.70 = 30,243,643.20 : x
  2. Step 2: Convert to fraction form
    84,769,489.80/127,154,234.70 = 30,243,643.20/x
  3. Step 3: Cross multiply
    84,769,489.80x = 127,154,234.70 × 30,243,643.20
  4. Step 4: Simplify right side
    84,769,489.80x = 3,845,607,305,635,859
  5. Step 5: Solve for x
    x = 3,845,607,305,635,859/84,769,489.80
  6. Step 6: Final answer
    x = 45,365,464.80

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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.