Finding the Fourth Proportional to 726,513,659.09, 1,090,110,615.73 and 317,516,665.49
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Solution
The fourth proportional to 726,513,659.09, 1,090,110,615.73 and 317,516,665.49 is: 476,423,647.91
Step by Step Solution
- Step 1: Write the proportion equation
726,513,659.09 : 1,090,110,615.73 = 317,516,665.49 : x - Step 2: Convert to fraction form
726,513,659.09/1,090,110,615.73 = 317,516,665.49/x - Step 3: Cross multiply
726,513,659.09x = 1,090,110,615.73 × 317,516,665.49 - Step 4: Simplify right side
726,513,659.09x = 346,128,287,721,840,384 - Step 5: Solve for x
x = 346,128,287,721,840,384/726,513,659.09 - Step 6: Final answer
x = 476,423,647.91
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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.