Home / 405,455,119,005.50-559,528,618,309.90-220,056,830,832.80

Finding the Fourth Proportional to 405,455,119,005.50, 559,528,618,309.90 and 220,056,830,832.80

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Solution

The fourth proportional to 405,455,119,005.50, 559,528,618,309.90 and 220,056,830,832.80 is: 303,678,727,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,455,119,005.50 : 559,528,618,309.90 = 220,056,830,832.80 : x
  2. Step 2: Convert to fraction form
    405,455,119,005.50/559,528,618,309.90 = 220,056,830,832.80/x
  3. Step 3: Cross multiply
    405,455,119,005.50x = 559,528,618,309.90 × 220,056,830,832.80
  4. Step 4: Simplify right side
    405,455,119,005.50x = 123,128,094,505,531,982,479,360
  5. Step 5: Solve for x
    x = 123,128,094,505,531,982,479,360/405,455,119,005.50
  6. Step 6: Final answer
    x = 303,678,727,272.06

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Double scale
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1.5x scale

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.