Finding the Fourth Proportional to 153,362,353.19, 211,655,362.57 and 91,482,691.75
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Solution
The fourth proportional to 153,362,353.19, 211,655,362.57 and 91,482,691.75 is: 126,255,250.32
Step by Step Solution
- Step 1: Write the proportion equation
153,362,353.19 : 211,655,362.57 = 91,482,691.75 : x - Step 2: Convert to fraction form
153,362,353.19/211,655,362.57 = 91,482,691.75/x - Step 3: Cross multiply
153,362,353.19x = 211,655,362.57 × 91,482,691.75 - Step 4: Simplify right side
153,362,353.19x = 19,362,802,290,467,952 - Step 5: Solve for x
x = 19,362,802,290,467,952/153,362,353.19 - Step 6: Final answer
x = 126,255,250.32
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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.