Finding the Fourth Proportional to 808,587,239.42, 1,115,850,392.16 and 437,309,270.75
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Solution
The fourth proportional to 808,587,239.42, 1,115,850,392.16 and 437,309,270.75 is: 603,486,794.59
Step by Step Solution
- Step 1: Write the proportion equation
808,587,239.42 : 1,115,850,392.16 = 437,309,270.75 : x - Step 2: Convert to fraction form
808,587,239.42/1,115,850,392.16 = 437,309,270.75/x - Step 3: Cross multiply
808,587,239.42x = 1,115,850,392.16 × 437,309,270.75 - Step 4: Simplify right side
808,587,239.42x = 487,971,721,261,591,168 - Step 5: Solve for x
x = 487,971,721,261,591,168/808,587,239.42 - Step 6: Final answer
x = 603,486,794.59
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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.