Finding the Fourth Proportional to 87,654,841.84, 120,967,242.40 and 48,495,980.81
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Solution
The fourth proportional to 87,654,841.84, 120,967,242.40 and 48,495,980.81 is: 66,926,423.49
Step by Step Solution
- Step 1: Write the proportion equation
87,654,841.84 : 120,967,242.40 = 48,495,980.81 : x - Step 2: Convert to fraction form
87,654,841.84/120,967,242.40 = 48,495,980.81/x - Step 3: Cross multiply
87,654,841.84x = 120,967,242.40 × 48,495,980.81 - Step 4: Simplify right side
87,654,841.84x = 5,866,425,066,159,024 - Step 5: Solve for x
x = 5,866,425,066,159,024/87,654,841.84 - Step 6: Final answer
x = 66,926,423.49
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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.