Finding the Fourth Proportional to 1,008,955,724.84, 1,392,358,284.42 and 545,381,708.84
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Solution
The fourth proportional to 1,008,955,724.84, 1,392,358,284.42 and 545,381,708.84 is: 752,626,425.30
Step by Step Solution
- Step 1: Write the proportion equation
1,008,955,724.84 : 1,392,358,284.42 = 545,381,708.84 : x - Step 2: Convert to fraction form
1,008,955,724.84/1,392,358,284.42 = 545,381,708.84/x - Step 3: Cross multiply
1,008,955,724.84x = 1,392,358,284.42 × 545,381,708.84 - Step 4: Simplify right side
1,008,955,724.84x = 759,366,740,474,510,464 - Step 5: Solve for x
x = 759,366,740,474,510,464/1,008,955,724.84 - Step 6: Final answer
x = 752,626,425.30
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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.