Finding the Fourth Proportional to 30,726,750.06, 42,402,420.18 and 16,787,805.66
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Solution
The fourth proportional to 30,726,750.06, 42,402,420.18 and 16,787,805.66 is: 23,166,901.42
Step by Step Solution
- Step 1: Write the proportion equation
30,726,750.06 : 42,402,420.18 = 16,787,805.66 : x - Step 2: Convert to fraction form
30,726,750.06/42,402,420.18 = 16,787,805.66/x - Step 3: Cross multiply
30,726,750.06x = 42,402,420.18 × 16,787,805.66 - Step 4: Simplify right side
30,726,750.06x = 711,843,589,495,502.25 - Step 5: Solve for x
x = 711,843,589,495,502.25/30,726,750.06 - Step 6: Final answer
x = 23,166,901.42
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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.