Finding the Fourth Proportional to 52,953,946.05, 79,430,919.08 and 18,862,990.05
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Solution
The fourth proportional to 52,953,946.05, 79,430,919.08 and 18,862,990.05 is: 28,294,485.08
Step by Step Solution
- Step 1: Write the proportion equation
52,953,946.05 : 79,430,919.08 = 18,862,990.05 : x - Step 2: Convert to fraction form
52,953,946.05/79,430,919.08 = 18,862,990.05/x - Step 3: Cross multiply
52,953,946.05x = 79,430,919.08 × 18,862,990.05 - Step 4: Simplify right side
52,953,946.05x = 1,498,304,636,174,080.25 - Step 5: Solve for x
x = 1,498,304,636,174,080.25/52,953,946.05 - Step 6: Final answer
x = 28,294,485.08
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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.