Finding the Fourth Proportional to 98,583,841.40, 136,184,857.62 and 89,748,536.36
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Solution
The fourth proportional to 98,583,841.40, 136,184,857.62 and 89,748,536.36 is: 123,979,665.15
Step by Step Solution
- Step 1: Write the proportion equation
98,583,841.40 : 136,184,857.62 = 89,748,536.36 : x - Step 2: Convert to fraction form
98,583,841.40/136,184,857.62 = 89,748,536.36/x - Step 3: Cross multiply
98,583,841.40x = 136,184,857.62 × 89,748,536.36 - Step 4: Simplify right side
98,583,841.40x = 12,222,391,645,789,994 - Step 5: Solve for x
x = 12,222,391,645,789,994/98,583,841.40 - Step 6: Final answer
x = 123,979,665.15
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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.