Home / 426,618,841,880.16-639,480,305,884.48-143,539,407,528.66

Finding the Fourth Proportional to 426,618,841,880.16, 639,480,305,884.48 and 143,539,407,528.66

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Solution

The fourth proportional to 426,618,841,880.16, 639,480,305,884.48 and 143,539,407,528.66 is: 215,158,392,508.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,618,841,880.16 : 639,480,305,884.48 = 143,539,407,528.66 : x
  2. Step 2: Convert to fraction form
    426,618,841,880.16/639,480,305,884.48 = 143,539,407,528.66/x
  3. Step 3: Cross multiply
    426,618,841,880.16x = 639,480,305,884.48 × 143,539,407,528.66
  4. Step 4: Simplify right side
    426,618,841,880.16x = 91,790,624,232,904,528,494,592
  5. Step 5: Solve for x
    x = 91,790,624,232,904,528,494,592/426,618,841,880.16
  6. Step 6: Final answer
    x = 215,158,392,508.81

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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.