Finding the Fourth Proportional to 1,310,344,064.96, 1,808,319,427.96 and 774,954,676.32
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Solution
The fourth proportional to 1,310,344,064.96, 1,808,319,427.96 and 774,954,676.32 is: 1,069,463,841.18
Step by Step Solution
- Step 1: Write the proportion equation
1,310,344,064.96 : 1,808,319,427.96 = 774,954,676.32 : x - Step 2: Convert to fraction form
1,310,344,064.96/1,808,319,427.96 = 774,954,676.32/x - Step 3: Cross multiply
1,310,344,064.96x = 1,808,319,427.96 × 774,954,676.32 - Step 4: Simplify right side
1,310,344,064.96x = 1,401,365,596,977,909,504 - Step 5: Solve for x
x = 1,401,365,596,977,909,504/1,310,344,064.96 - Step 6: Final answer
x = 1,069,463,841.18
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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.