Home / 387,084,848.80-579,283,580.40-354,836,221.60

Finding the Fourth Proportional to 387,084,848.80, 579,283,580.40 and 354,836,221.60

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Solution

The fourth proportional to 387,084,848.80, 579,283,580.40 and 354,836,221.60 is: 531,022,584.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,084,848.80 : 579,283,580.40 = 354,836,221.60 : x
  2. Step 2: Convert to fraction form
    387,084,848.80/579,283,580.40 = 354,836,221.60/x
  3. Step 3: Cross multiply
    387,084,848.80x = 579,283,580.40 × 354,836,221.60
  4. Step 4: Simplify right side
    387,084,848.80x = 205,550,796,904,055,808
  5. Step 5: Solve for x
    x = 205,550,796,904,055,808/387,084,848.80
  6. Step 6: Final answer
    x = 531,022,584.69

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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.