Finding the Fourth Proportional to 28,520,741.79, 39,363,654.65 and 16,924,699.17
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Solution
The fourth proportional to 28,520,741.79, 39,363,654.65 and 16,924,699.17 is: 23,359,070.32
Step by Step Solution
- Step 1: Write the proportion equation
28,520,741.79 : 39,363,654.65 = 16,924,699.17 : x - Step 2: Convert to fraction form
28,520,741.79/39,363,654.65 = 16,924,699.17/x - Step 3: Cross multiply
28,520,741.79x = 39,363,654.65 × 16,924,699.17 - Step 4: Simplify right side
28,520,741.79x = 666,218,013,098,398.25 - Step 5: Solve for x
x = 666,218,013,098,398.25/28,520,741.79 - Step 6: Final answer
x = 23,359,070.32
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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.