Finding the Fourth Proportional to 878,616,192.07, 1,212,190,027.75 and 502,002,555.81
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Solution
The fourth proportional to 878,616,192.07, 1,212,190,027.75 and 502,002,555.81 is: 692,591,938.95
Step by Step Solution
- Step 1: Write the proportion equation
878,616,192.07 : 1,212,190,027.75 = 502,002,555.81 : x - Step 2: Convert to fraction form
878,616,192.07/1,212,190,027.75 = 502,002,555.81/x - Step 3: Cross multiply
878,616,192.07x = 1,212,190,027.75 × 502,002,555.81 - Step 4: Simplify right side
878,616,192.07x = 608,522,492,057,894,784 - Step 5: Solve for x
x = 608,522,492,057,894,784/878,616,192.07 - Step 6: Final answer
x = 692,591,938.95
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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.