Finding the Fourth Proportional to 98,144,949.18, 135,445,356.15 and 56,328,680.18
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Solution
The fourth proportional to 98,144,949.18, 135,445,356.15 and 56,328,680.18 is: 77,736,635.57
Step by Step Solution
- Step 1: Write the proportion equation
98,144,949.18 : 135,445,356.15 = 56,328,680.18 : x - Step 2: Convert to fraction form
98,144,949.18/135,445,356.15 = 56,328,680.18/x - Step 3: Cross multiply
98,144,949.18x = 135,445,356.15 × 56,328,680.18 - Step 4: Simplify right side
98,144,949.18x = 7,629,458,147,762,319 - Step 5: Solve for x
x = 7,629,458,147,762,319/98,144,949.18 - Step 6: Final answer
x = 77,736,635.57
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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.