Finding the Fourth Proportional to 102,730,431.44, 141,767,961.27 and 56,319,688.91
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Solution
The fourth proportional to 102,730,431.44, 141,767,961.27 and 56,319,688.91 is: 77,721,151.99
Step by Step Solution
- Step 1: Write the proportion equation
102,730,431.44 : 141,767,961.27 = 56,319,688.91 : x - Step 2: Convert to fraction form
102,730,431.44/141,767,961.27 = 56,319,688.91/x - Step 3: Cross multiply
102,730,431.44x = 141,767,961.27 × 56,319,688.91 - Step 4: Simplify right side
102,730,431.44x = 7,984,327,476,131,329 - Step 5: Solve for x
x = 7,984,327,476,131,329/102,730,431.44 - Step 6: Final answer
x = 77,721,151.99
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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.