Finding the Fourth Proportional to 81,046,268.80, 121,569,403.20 and 24,312,572.80
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Solution
The fourth proportional to 81,046,268.80, 121,569,403.20 and 24,312,572.80 is: 36,468,859.20
Step by Step Solution
- Step 1: Write the proportion equation
81,046,268.80 : 121,569,403.20 = 24,312,572.80 : x - Step 2: Convert to fraction form
81,046,268.80/121,569,403.20 = 24,312,572.80/x - Step 3: Cross multiply
81,046,268.80x = 121,569,403.20 × 24,312,572.80 - Step 4: Simplify right side
81,046,268.80x = 2,955,664,965,552,553 - Step 5: Solve for x
x = 2,955,664,965,552,553/81,046,268.80 - Step 6: Final answer
x = 36,468,859.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.