Finding the Fourth Proportional to 90,520,056.96, 124,917,671.68 and 49,267,245.12
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Solution
The fourth proportional to 90,520,056.96, 124,917,671.68 and 49,267,245.12 is: 67,988,794.50
Step by Step Solution
- Step 1: Write the proportion equation
90,520,056.96 : 124,917,671.68 = 49,267,245.12 : x - Step 2: Convert to fraction form
90,520,056.96/124,917,671.68 = 49,267,245.12/x - Step 3: Cross multiply
90,520,056.96x = 124,917,671.68 × 49,267,245.12 - Step 4: Simplify right side
90,520,056.96x = 6,154,349,550,478,242 - Step 5: Solve for x
x = 6,154,349,550,478,242/90,520,056.96 - Step 6: Final answer
x = 67,988,794.50
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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.