Finding the Fourth Proportional to 276,914,779.20, 415,372,168.80 and 133,587,547.20
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Solution
The fourth proportional to 276,914,779.20, 415,372,168.80 and 133,587,547.20 is: 200,381,320.80
Step by Step Solution
- Step 1: Write the proportion equation
276,914,779.20 : 415,372,168.80 = 133,587,547.20 : x - Step 2: Convert to fraction form
276,914,779.20/415,372,168.80 = 133,587,547.20/x - Step 3: Cross multiply
276,914,779.20x = 415,372,168.80 × 133,587,547.20 - Step 4: Simplify right side
276,914,779.20x = 55,488,549,205,136,368 - Step 5: Solve for x
x = 55,488,549,205,136,368/276,914,779.20 - Step 6: Final answer
x = 200,381,320.80
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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.