Finding the Fourth Proportional to 982,399,553.60, 1,356,323,217.20 and 625,368,780.08
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Solution
The fourth proportional to 982,399,553.60, 1,356,323,217.20 and 625,368,780.08 is: 863,398,392.87
Step by Step Solution
- Step 1: Write the proportion equation
982,399,553.60 : 1,356,323,217.20 = 625,368,780.08 : x - Step 2: Convert to fraction form
982,399,553.60/1,356,323,217.20 = 625,368,780.08/x - Step 3: Cross multiply
982,399,553.60x = 1,356,323,217.20 × 625,368,780.08 - Step 4: Simplify right side
982,399,553.60x = 848,202,195,734,545,024 - Step 5: Solve for x
x = 848,202,195,734,545,024/982,399,553.60 - Step 6: Final answer
x = 863,398,392.87
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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.