Finding the Fourth Proportional to 134,868,081.24, 186,117,949.80 and 72,988,420.14
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Solution
The fourth proportional to 134,868,081.24, 186,117,949.80 and 72,988,420.14 is: 100,724,018.54
Step by Step Solution
- Step 1: Write the proportion equation
134,868,081.24 : 186,117,949.80 = 72,988,420.14 : x - Step 2: Convert to fraction form
134,868,081.24/186,117,949.80 = 72,988,420.14/x - Step 3: Cross multiply
134,868,081.24x = 186,117,949.80 × 72,988,420.14 - Step 4: Simplify right side
134,868,081.24x = 13,584,455,115,597,830 - Step 5: Solve for x
x = 13,584,455,115,597,830/134,868,081.24 - Step 6: Final answer
x = 100,724,018.54
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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.