Finding the Fourth Proportional to 889,085,946.60, 1,332,916,788.96 and 422,513,232.84
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Solution
The fourth proportional to 889,085,946.60, 1,332,916,788.96 and 422,513,232.84 is: 633,431,428.95
Step by Step Solution
- Step 1: Write the proportion equation
889,085,946.60 : 1,332,916,788.96 = 422,513,232.84 : x - Step 2: Convert to fraction form
889,085,946.60/1,332,916,788.96 = 422,513,232.84/x - Step 3: Cross multiply
889,085,946.60x = 1,332,916,788.96 × 422,513,232.84 - Step 4: Simplify right side
889,085,946.60x = 563,174,981,610,201,600 - Step 5: Solve for x
x = 563,174,981,610,201,600/889,085,946.60 - Step 6: Final answer
x = 633,431,428.95
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1.5x scale
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.