Finding the Fourth Proportional to 1,124,460,219.40, 1,686,847,269.30 and 469,261,058.20
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Solution
The fourth proportional to 1,124,460,219.40, 1,686,847,269.30 and 469,261,058.20 is: 703,957,081.77
Step by Step Solution
- Step 1: Write the proportion equation
1,124,460,219.40 : 1,686,847,269.30 = 469,261,058.20 : x - Step 2: Convert to fraction form
1,124,460,219.40/1,686,847,269.30 = 469,261,058.20/x - Step 3: Cross multiply
1,124,460,219.40x = 1,686,847,269.30 × 469,261,058.20 - Step 4: Simplify right side
1,124,460,219.40x = 791,571,734,613,498,368 - Step 5: Solve for x
x = 791,571,734,613,498,368/1,124,460,219.40 - Step 6: Final answer
x = 703,957,081.77
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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.