Finding the Fourth Proportional to 153,281,809.80, 211,497,320.70 and 88,079,116.68
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Solution
The fourth proportional to 153,281,809.80, 211,497,320.70 and 88,079,116.68 is: 121,531,036.28
Step by Step Solution
- Step 1: Write the proportion equation
153,281,809.80 : 211,497,320.70 = 88,079,116.68 : x - Step 2: Convert to fraction form
153,281,809.80/211,497,320.70 = 88,079,116.68/x - Step 3: Cross multiply
153,281,809.80x = 211,497,320.70 × 88,079,116.68 - Step 4: Simplify right side
153,281,809.80x = 18,628,497,187,442,680 - Step 5: Solve for x
x = 18,628,497,187,442,680/153,281,809.80 - Step 6: Final answer
x = 121,531,036.28
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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.