Finding the Fourth Proportional to 1,346,425,405,817.20, 1,858,068,851,861 and 729,129,189,331.35
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Solution
The fourth proportional to 1,346,425,405,817.20, 1,858,068,851,861 and 729,129,189,331.35 is: 1,006,199,251,607.98
Step by Step Solution
- Step 1: Write the proportion equation
1,346,425,405,817.20 : 1,858,068,851,861 = 729,129,189,331.35 : x - Step 2: Convert to fraction form
1,346,425,405,817.20/1,858,068,851,861 = 729,129,189,331.35/x - Step 3: Cross multiply
1,346,425,405,817.20x = 1,858,068,851,861 × 729,129,189,331.35 - Step 4: Simplify right side
1,346,425,405,817.20x = 1,354,772,235,679,243,071,127,552 - Step 5: Solve for x
x = 1,354,772,235,679,243,071,127,552/1,346,425,405,817.20 - Step 6: Final answer
x = 1,006,199,251,607.98
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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.