Finding the Fourth Proportional to 5,278,550,353.08, 7,284,272,431.98 and 2,931,708,763.32
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Solution
The fourth proportional to 5,278,550,353.08, 7,284,272,431.98 and 2,931,708,763.32 is: 4,045,687,526.84
Step by Step Solution
- Step 1: Write the proportion equation
5,278,550,353.08 : 7,284,272,431.98 = 2,931,708,763.32 : x - Step 2: Convert to fraction form
5,278,550,353.08/7,284,272,431.98 = 2,931,708,763.32/x - Step 3: Cross multiply
5,278,550,353.08x = 7,284,272,431.98 × 2,931,708,763.32 - Step 4: Simplify right side
5,278,550,353.08x = 21,355,365,323,246,055,424 - Step 5: Solve for x
x = 21,355,365,323,246,055,424/5,278,550,353.08 - Step 6: Final answer
x = 4,045,687,526.84
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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.