Finding the Fourth Proportional to 872,431,248.57, 1,203,949,409.35 and 496,087,864.75
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Solution
The fourth proportional to 872,431,248.57, 1,203,949,409.35 and 496,087,864.75 is: 684,598,004.40
Step by Step Solution
- Step 1: Write the proportion equation
872,431,248.57 : 1,203,949,409.35 = 496,087,864.75 : x - Step 2: Convert to fraction form
872,431,248.57/1,203,949,409.35 = 496,087,864.75/x - Step 3: Cross multiply
872,431,248.57x = 1,203,949,409.35 × 496,087,864.75 - Step 4: Simplify right side
872,431,248.57x = 597,264,691,751,465,088 - Step 5: Solve for x
x = 597,264,691,751,465,088/872,431,248.57 - Step 6: Final answer
x = 684,598,004.40
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1.5x scale
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.