Finding the Fourth Proportional to 128,547,398.40, 192,795,317.49 and 62,940,268.85
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Solution
The fourth proportional to 128,547,398.40, 192,795,317.49 and 62,940,268.85 is: 94,397,780.63
Step by Step Solution
- Step 1: Write the proportion equation
128,547,398.40 : 192,795,317.49 = 62,940,268.85 : x - Step 2: Convert to fraction form
128,547,398.40/192,795,317.49 = 62,940,268.85/x - Step 3: Cross multiply
128,547,398.40x = 192,795,317.49 × 62,940,268.85 - Step 4: Simplify right side
128,547,398.40x = 12,134,589,114,877,730 - Step 5: Solve for x
x = 12,134,589,114,877,730/128,547,398.40 - Step 6: Final answer
x = 94,397,780.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.