Finding the Fourth Proportional to 1,972,375,368.42, 2,721,879,475.86 and 1,068,138,322.24
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Solution
The fourth proportional to 1,972,375,368.42, 2,721,879,475.86 and 1,068,138,322.24 is: 1,474,031,679.38
Step by Step Solution
- Step 1: Write the proportion equation
1,972,375,368.42 : 2,721,879,475.86 = 1,068,138,322.24 : x - Step 2: Convert to fraction form
1,972,375,368.42/2,721,879,475.86 = 1,068,138,322.24/x - Step 3: Cross multiply
1,972,375,368.42x = 2,721,879,475.86 × 1,068,138,322.24 - Step 4: Simplify right side
1,972,375,368.42x = 2,907,343,776,684,591,104 - Step 5: Solve for x
x = 2,907,343,776,684,591,104/1,972,375,368.42 - Step 6: Final answer
x = 1,474,031,679.38
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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.