Finding the Fourth Proportional to 5,758,405,929.12, 7,946,598,245.76 and 3,118,207,041.12
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Solution
The fourth proportional to 5,758,405,929.12, 7,946,598,245.76 and 3,118,207,041.12 is: 4,303,124,668.16
Step by Step Solution
- Step 1: Write the proportion equation
5,758,405,929.12 : 7,946,598,245.76 = 3,118,207,041.12 : x - Step 2: Convert to fraction form
5,758,405,929.12/7,946,598,245.76 = 3,118,207,041.12/x - Step 3: Cross multiply
5,758,405,929.12x = 7,946,598,245.76 × 3,118,207,041.12 - Step 4: Simplify right side
5,758,405,929.12x = 24,779,138,602,880,671,744 - Step 5: Solve for x
x = 24,779,138,602,880,671,744/5,758,405,929.12 - Step 6: Final answer
x = 4,303,124,668.16
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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.