Finding the Fourth Proportional to 52,953,911.80, 79,430,867.70 and 18,862,955.80
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Solution
The fourth proportional to 52,953,911.80, 79,430,867.70 and 18,862,955.80 is: 28,294,433.70
Step by Step Solution
- Step 1: Write the proportion equation
52,953,911.80 : 79,430,867.70 = 18,862,955.80 : x - Step 2: Convert to fraction form
52,953,911.80/79,430,867.70 = 18,862,955.80/x - Step 3: Cross multiply
52,953,911.80x = 79,430,867.70 × 18,862,955.80 - Step 4: Simplify right side
52,953,911.80x = 1,498,300,946,580,747.75 - Step 5: Solve for x
x = 1,498,300,946,580,747.75/52,953,911.80 - Step 6: Final answer
x = 28,294,433.70
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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.