Finding the Fourth Proportional to 153,281,805.80, 211,497,315.20 and 88,079,112.68
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Solution
The fourth proportional to 153,281,805.80, 211,497,315.20 and 88,079,112.68 is: 121,531,030.77
Step by Step Solution
- Step 1: Write the proportion equation
153,281,805.80 : 211,497,315.20 = 88,079,112.68 : x - Step 2: Convert to fraction form
153,281,805.80/211,497,315.20 = 88,079,112.68/x - Step 3: Cross multiply
153,281,805.80x = 211,497,315.20 × 88,079,112.68 - Step 4: Simplify right side
153,281,805.80x = 18,628,495,857,018,276 - Step 5: Solve for x
x = 18,628,495,857,018,276/153,281,805.80 - Step 6: Final answer
x = 121,531,030.77
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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.