Finding the Fourth Proportional to 136,449,803.30, 188,313,712.11 and 74,579,442.08
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Solution
The fourth proportional to 136,449,803.30, 188,313,712.11 and 74,579,442.08 is: 102,926,726.50
Step by Step Solution
- Step 1: Write the proportion equation
136,449,803.30 : 188,313,712.11 = 74,579,442.08 : x - Step 2: Convert to fraction form
136,449,803.30/188,313,712.11 = 74,579,442.08/x - Step 3: Cross multiply
136,449,803.30x = 188,313,712.11 × 74,579,442.08 - Step 4: Simplify right side
136,449,803.30x = 14,044,331,584,235,972 - Step 5: Solve for x
x = 14,044,331,584,235,972/136,449,803.30 - Step 6: Final answer
x = 102,926,726.50
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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.