Finding the Fourth Proportional to 2,015,889,376.80, 2,781,939,230.34 and 1,169,620,594.80
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Solution
The fourth proportional to 2,015,889,376.80, 2,781,939,230.34 and 1,169,620,594.80 is: 1,614,083,319.62
Step by Step Solution
- Step 1: Write the proportion equation
2,015,889,376.80 : 2,781,939,230.34 = 1,169,620,594.80 : x - Step 2: Convert to fraction form
2,015,889,376.80/2,781,939,230.34 = 1,169,620,594.80/x - Step 3: Cross multiply
2,015,889,376.80x = 2,781,939,230.34 × 1,169,620,594.80 - Step 4: Simplify right side
2,015,889,376.80x = 3,253,813,417,287,725,056 - Step 5: Solve for x
x = 3,253,813,417,287,725,056/2,015,889,376.80 - Step 6: Final answer
x = 1,614,083,319.62
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1.5x scale
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.