Finding the Fourth Proportional to 77,154,399.76, 106,472,930.28 and 44,115,269.32
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Solution
The fourth proportional to 77,154,399.76, 106,472,930.28 and 44,115,269.32 is: 60,878,990.82
Step by Step Solution
- Step 1: Write the proportion equation
77,154,399.76 : 106,472,930.28 = 44,115,269.32 : x - Step 2: Convert to fraction form
77,154,399.76/106,472,930.28 = 44,115,269.32/x - Step 3: Cross multiply
77,154,399.76x = 106,472,930.28 × 44,115,269.32 - Step 4: Simplify right side
77,154,399.76x = 4,697,081,994,591,783 - Step 5: Solve for x
x = 4,697,081,994,591,783/77,154,399.76 - Step 6: Final answer
x = 60,878,990.82
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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.