Finding the Fourth Proportional to 55,609,827.80, 83,414,741.70 and 47,211,747.80
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Solution
The fourth proportional to 55,609,827.80, 83,414,741.70 and 47,211,747.80 is: 70,817,621.70
Step by Step Solution
- Step 1: Write the proportion equation
55,609,827.80 : 83,414,741.70 = 47,211,747.80 : x - Step 2: Convert to fraction form
55,609,827.80/83,414,741.70 = 47,211,747.80/x - Step 3: Cross multiply
55,609,827.80x = 83,414,741.70 × 47,211,747.80 - Step 4: Simplify right side
55,609,827.80x = 3,938,155,747,942,543 - Step 5: Solve for x
x = 3,938,155,747,942,543/55,609,827.80 - Step 6: Final answer
x = 70,817,621.70
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1.5x scale
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.