Finding the Fourth Proportional to 157,464,781.30, 236,197,171.95 and 145,985,655.70
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Solution
The fourth proportional to 157,464,781.30, 236,197,171.95 and 145,985,655.70 is: 218,978,483.55
Step by Step Solution
- Step 1: Write the proportion equation
157,464,781.30 : 236,197,171.95 = 145,985,655.70 : x - Step 2: Convert to fraction form
157,464,781.30/236,197,171.95 = 145,985,655.70/x - Step 3: Cross multiply
157,464,781.30x = 236,197,171.95 × 145,985,655.70 - Step 4: Simplify right side
157,464,781.30x = 34,481,399,021,606,392 - Step 5: Solve for x
x = 34,481,399,021,606,392/157,464,781.30 - Step 6: Final answer
x = 218,978,483.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.