Finding the Fourth Proportional to 242,919,082.18, 335,219,995.65 and 138,530,750.95
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Solution
The fourth proportional to 242,919,082.18, 335,219,995.65 and 138,530,750.95 is: 191,167,681.49
Step by Step Solution
- Step 1: Write the proportion equation
242,919,082.18 : 335,219,995.65 = 138,530,750.95 : x - Step 2: Convert to fraction form
242,919,082.18/335,219,995.65 = 138,530,750.95/x - Step 3: Cross multiply
242,919,082.18x = 335,219,995.65 × 138,530,750.95 - Step 4: Simplify right side
242,919,082.18x = 46,438,277,730,850,224 - Step 5: Solve for x
x = 46,438,277,730,850,224/242,919,082.18 - Step 6: Final answer
x = 191,167,681.49
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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.