Finding the Fourth Proportional to 30,886,317.18, 42,623,101.14 and 16,947,763.80
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Solution
The fourth proportional to 30,886,317.18, 42,623,101.14 and 16,947,763.80 is: 23,387,904.95
Step by Step Solution
- Step 1: Write the proportion equation
30,886,317.18 : 42,623,101.14 = 16,947,763.80 : x - Step 2: Convert to fraction form
30,886,317.18/42,623,101.14 = 16,947,763.80/x - Step 3: Cross multiply
30,886,317.18x = 42,623,101.14 × 16,947,763.80 - Step 4: Simplify right side
30,886,317.18x = 722,366,250,544,230.75 - Step 5: Solve for x
x = 722,366,250,544,230.75/30,886,317.18 - Step 6: Final answer
x = 23,387,904.95
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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.