Finding the Fourth Proportional to 2,116,979,282.61, 2,921,433,832.05 and 1,177,161,746.37
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Solution
The fourth proportional to 2,116,979,282.61, 2,921,433,832.05 and 1,177,161,746.37 is: 1,624,484,556.79
Step by Step Solution
- Step 1: Write the proportion equation
2,116,979,282.61 : 2,921,433,832.05 = 1,177,161,746.37 : x - Step 2: Convert to fraction form
2,116,979,282.61/2,921,433,832.05 = 1,177,161,746.37/x - Step 3: Cross multiply
2,116,979,282.61x = 2,921,433,832.05 × 1,177,161,746.37 - Step 4: Simplify right side
2,116,979,282.61x = 3,439,000,151,640,379,392 - Step 5: Solve for x
x = 3,439,000,151,640,379,392/2,116,979,282.61 - Step 6: Final answer
x = 1,624,484,556.79
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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.