Finding the Fourth Proportional to 135,916,325.24, 187,558,478.34 and 79,406,309
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Solution
The fourth proportional to 135,916,325.24, 187,558,478.34 and 79,406,309 is: 109,577,171.55
Step by Step Solution
- Step 1: Write the proportion equation
135,916,325.24 : 187,558,478.34 = 79,406,309 : x - Step 2: Convert to fraction form
135,916,325.24/187,558,478.34 = 79,406,309/x - Step 3: Cross multiply
135,916,325.24x = 187,558,478.34 × 79,406,309 - Step 4: Simplify right side
135,916,325.24x = 14,893,326,486,635,848 - Step 5: Solve for x
x = 14,893,326,486,635,848/135,916,325.24 - Step 6: Final answer
x = 109,577,171.55
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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.