Finding the Fourth Proportional to 102,438,971.65, 141,369,146.67 and 56,029,226.94
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Solution
The fourth proportional to 102,438,971.65, 141,369,146.67 and 56,029,226.94 is: 77,322,174.11
Step by Step Solution
- Step 1: Write the proportion equation
102,438,971.65 : 141,369,146.67 = 56,029,226.94 : x - Step 2: Convert to fraction form
102,438,971.65/141,369,146.67 = 56,029,226.94/x - Step 3: Cross multiply
102,438,971.65x = 141,369,146.67 × 56,029,226.94 - Step 4: Simplify right side
102,438,971.65x = 7,920,804,001,087,574 - Step 5: Solve for x
x = 7,920,804,001,087,574/102,438,971.65 - Step 6: Final answer
x = 77,322,174.11
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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.