Finding the Fourth Proportional to 668,619,595.34, 922,690,226.67 and 371,260,378.70
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Solution
The fourth proportional to 668,619,595.34, 922,690,226.67 and 371,260,378.70 is: 512,336,649.07
Step by Step Solution
- Step 1: Write the proportion equation
668,619,595.34 : 922,690,226.67 = 371,260,378.70 : x - Step 2: Convert to fraction form
668,619,595.34/922,690,226.67 = 371,260,378.70/x - Step 3: Cross multiply
668,619,595.34x = 922,690,226.67 × 371,260,378.70 - Step 4: Simplify right side
668,619,595.34x = 342,558,322,976,292,992 - Step 5: Solve for x
x = 342,558,322,976,292,992/668,619,595.34 - Step 6: Final answer
x = 512,336,649.07
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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.