Finding the Fourth Proportional to 136,758,288.78, 188,726,496.80 and 74,034,385.02
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Solution
The fourth proportional to 136,758,288.78, 188,726,496.80 and 74,034,385.02 is: 102,167,482.88
Step by Step Solution
- Step 1: Write the proportion equation
136,758,288.78 : 188,726,496.80 = 74,034,385.02 : x - Step 2: Convert to fraction form
136,758,288.78/188,726,496.80 = 74,034,385.02/x - Step 3: Cross multiply
136,758,288.78x = 188,726,496.80 × 74,034,385.02 - Step 4: Simplify right side
136,758,288.78x = 13,972,250,127,196,824 - Step 5: Solve for x
x = 13,972,250,127,196,824/136,758,288.78 - Step 6: Final answer
x = 102,167,482.88
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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.