Finding the Fourth Proportional to 90,387,321.26, 124,748,130.78 and 55,125,594.09
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Solution
The fourth proportional to 90,387,321.26, 124,748,130.78 and 55,125,594.09 is: 76,081,630.98
Step by Step Solution
- Step 1: Write the proportion equation
90,387,321.26 : 124,748,130.78 = 55,125,594.09 : x - Step 2: Convert to fraction form
90,387,321.26/124,748,130.78 = 55,125,594.09/x - Step 3: Cross multiply
90,387,321.26x = 124,748,130.78 × 55,125,594.09 - Step 4: Simplify right side
90,387,321.26x = 6,876,814,820,864,516 - Step 5: Solve for x
x = 6,876,814,820,864,516/90,387,321.26 - Step 6: Final answer
x = 76,081,630.98
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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.