Finding the Fourth Proportional to 153,818,893.16, 212,043,922.98 and 117,085,483.88
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Solution
The fourth proportional to 153,818,893.16, 212,043,922.98 and 117,085,483.88 is: 161,405,824.84
Step by Step Solution
- Step 1: Write the proportion equation
153,818,893.16 : 212,043,922.98 = 117,085,483.88 : x - Step 2: Convert to fraction form
153,818,893.16/212,043,922.98 = 117,085,483.88/x - Step 3: Cross multiply
153,818,893.16x = 212,043,922.98 × 117,085,483.88 - Step 4: Simplify right side
153,818,893.16x = 24,827,265,325,926,748 - Step 5: Solve for x
x = 24,827,265,325,926,748/153,818,893.16 - Step 6: Final answer
x = 161,405,824.84
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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.