Finding the Fourth Proportional to 381,445,959.62, 572,254,230.81 and 139,108,863.62
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Solution
The fourth proportional to 381,445,959.62, 572,254,230.81 and 139,108,863.62 is: 208,694,400.20
Step by Step Solution
- Step 1: Write the proportion equation
381,445,959.62 : 572,254,230.81 = 139,108,863.62 : x - Step 2: Convert to fraction form
381,445,959.62/572,254,230.81 = 139,108,863.62/x - Step 3: Cross multiply
381,445,959.62x = 572,254,230.81 × 139,108,863.62 - Step 4: Simplify right side
381,445,959.62x = 79,605,635,749,716,288 - Step 5: Solve for x
x = 79,605,635,749,716,288/381,445,959.62 - Step 6: Final answer
x = 208,694,400.20
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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.