Finding the Fourth Proportional to 1,252,694,965.03, 1,728,526,881.30 and 723,956,848.26
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Solution
The fourth proportional to 1,252,694,965.03, 1,728,526,881.30 and 723,956,848.26 is: 998,949,391.55
Step by Step Solution
- Step 1: Write the proportion equation
1,252,694,965.03 : 1,728,526,881.30 = 723,956,848.26 : x - Step 2: Convert to fraction form
1,252,694,965.03/1,728,526,881.30 = 723,956,848.26/x - Step 3: Cross multiply
1,252,694,965.03x = 1,728,526,881.30 × 723,956,848.26 - Step 4: Simplify right side
1,252,694,965.03x = 1,251,378,873,118,635,008 - Step 5: Solve for x
x = 1,251,378,873,118,635,008/1,252,694,965.03 - Step 6: Final answer
x = 998,949,391.55
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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.