Finding the Fourth Proportional to 2,831,023,758.60, 4,245,854,384.64 and 865,893,804.12
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Solution
The fourth proportional to 2,831,023,758.60, 4,245,854,384.64 and 865,893,804.12 is: 1,298,632,338.81
Step by Step Solution
- Step 1: Write the proportion equation
2,831,023,758.60 : 4,245,854,384.64 = 865,893,804.12 : x - Step 2: Convert to fraction form
2,831,023,758.60/4,245,854,384.64 = 865,893,804.12/x - Step 3: Cross multiply
2,831,023,758.60x = 4,245,854,384.64 × 865,893,804.12 - Step 4: Simplify right side
2,831,023,758.60x = 3,676,459,004,855,511,040 - Step 5: Solve for x
x = 3,676,459,004,855,511,040/2,831,023,758.60 - Step 6: Final answer
x = 1,298,632,338.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.