Finding the Fourth Proportional to 1,573,375,493.88, 2,171,378,364.30 and 868,663,207.80
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Solution
The fourth proportional to 1,573,375,493.88, 2,171,378,364.30 and 868,663,207.80 is: 1,198,821,579.86
Step by Step Solution
- Step 1: Write the proportion equation
1,573,375,493.88 : 2,171,378,364.30 = 868,663,207.80 : x - Step 2: Convert to fraction form
1,573,375,493.88/2,171,378,364.30 = 868,663,207.80/x - Step 3: Cross multiply
1,573,375,493.88x = 2,171,378,364.30 × 868,663,207.80 - Step 4: Simplify right side
1,573,375,493.88x = 1,886,196,495,280,355,072 - Step 5: Solve for x
x = 1,886,196,495,280,355,072/1,573,375,493.88 - Step 6: Final answer
x = 1,198,821,579.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.