Finding the Fourth Proportional to 2,135,620,856.10, 2,948,178,737.51 and 1,422,343,415.19
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Solution
The fourth proportional to 2,135,620,856.10, 2,948,178,737.51 and 1,422,343,415.19 is: 1,963,514,545.25
Step by Step Solution
- Step 1: Write the proportion equation
2,135,620,856.10 : 2,948,178,737.51 = 1,422,343,415.19 : x - Step 2: Convert to fraction form
2,135,620,856.10/2,948,178,737.51 = 1,422,343,415.19/x - Step 3: Cross multiply
2,135,620,856.10x = 2,948,178,737.51 × 1,422,343,415.19 - Step 4: Simplify right side
2,135,620,856.10x = 4,193,322,614,100,516,352 - Step 5: Solve for x
x = 4,193,322,614,100,516,352/2,135,620,856.10 - Step 6: Final answer
x = 1,963,514,545.25
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.