Finding the Fourth Proportional to 1,643,184,417,109.60, 2,267,597,163,221.60 and 911,572,842,608.82
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Solution
The fourth proportional to 1,643,184,417,109.60, 2,267,597,163,221.60 and 911,572,842,608.82 is: 1,257,972,002,683.46
Step by Step Solution
- Step 1: Write the proportion equation
1,643,184,417,109.60 : 2,267,597,163,221.60 = 911,572,842,608.82 : x - Step 2: Convert to fraction form
1,643,184,417,109.60/2,267,597,163,221.60 = 911,572,842,608.82/x - Step 3: Cross multiply
1,643,184,417,109.60x = 2,267,597,163,221.60 × 911,572,842,608.82 - Step 4: Simplify right side
1,643,184,417,109.60x = 2,067,079,991,969,610,171,678,720 - Step 5: Solve for x
x = 2,067,079,991,969,610,171,678,720/1,643,184,417,109.60 - Step 6: Final answer
x = 1,257,972,002,683.46
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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.