Finding the Fourth Proportional to 136,855,762.68, 188,859,388.52 and 74,130,678.12
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Solution
The fourth proportional to 136,855,762.68, 188,859,388.52 and 74,130,678.12 is: 102,299,488.65
Step by Step Solution
- Step 1: Write the proportion equation
136,855,762.68 : 188,859,388.52 = 74,130,678.12 : x - Step 2: Convert to fraction form
136,855,762.68/188,859,388.52 = 74,130,678.12/x - Step 3: Cross multiply
136,855,762.68x = 188,859,388.52 × 74,130,678.12 - Step 4: Simplify right side
136,855,762.68x = 14,000,274,540,316,144 - Step 5: Solve for x
x = 14,000,274,540,316,144/136,855,762.68 - Step 6: Final answer
x = 102,299,488.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.