Finding the Fourth Proportional to 1,909,691,887.05, 2,864,537,830.58 and 1,819,293,772.95
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Solution
The fourth proportional to 1,909,691,887.05, 2,864,537,830.58 and 1,819,293,772.95 is: 2,728,940,659.43
Step by Step Solution
- Step 1: Write the proportion equation
1,909,691,887.05 : 2,864,537,830.58 = 1,819,293,772.95 : x - Step 2: Convert to fraction form
1,909,691,887.05/2,864,537,830.58 = 1,819,293,772.95/x - Step 3: Cross multiply
1,909,691,887.05x = 2,864,537,830.58 × 1,819,293,772.95 - Step 4: Simplify right side
1,909,691,887.05x = 5,211,435,837,544,799,232 - Step 5: Solve for x
x = 5,211,435,837,544,799,232/1,909,691,887.05 - Step 6: Final answer
x = 2,728,940,659.43
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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.