Finding the Fourth Proportional to 905,047,689.64, 1,356,518,624.54 and 517,142,473.96
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Solution
The fourth proportional to 905,047,689.64, 1,356,518,624.54 and 517,142,473.96 is: 775,112,080.28
Step by Step Solution
- Step 1: Write the proportion equation
905,047,689.64 : 1,356,518,624.54 = 517,142,473.96 : x - Step 2: Convert to fraction form
905,047,689.64/1,356,518,624.54 = 517,142,473.96/x - Step 3: Cross multiply
905,047,689.64x = 1,356,518,624.54 × 517,142,473.96 - Step 4: Simplify right side
905,047,689.64x = 701,513,397,467,431,936 - Step 5: Solve for x
x = 701,513,397,467,431,936/905,047,689.64 - Step 6: Final answer
x = 775,112,080.28
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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.