Finding the Fourth Proportional to 112,554,374.21, 155,329,890.89 and 62,318,592.53
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Solution
The fourth proportional to 112,554,374.21, 155,329,890.89 and 62,318,592.53 is: 86,002,345.49
Step by Step Solution
- Step 1: Write the proportion equation
112,554,374.21 : 155,329,890.89 = 62,318,592.53 : x - Step 2: Convert to fraction form
112,554,374.21/155,329,890.89 = 62,318,592.53/x - Step 3: Cross multiply
112,554,374.21x = 155,329,890.89 × 62,318,592.53 - Step 4: Simplify right side
112,554,374.21x = 9,679,940,177,597,514 - Step 5: Solve for x
x = 9,679,940,177,597,514/112,554,374.21 - Step 6: Final answer
x = 86,002,345.49
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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.