Finding the Fourth Proportional to 669,953,116.10, 924,530,198.04 and 368,531,953.69
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Solution
The fourth proportional to 669,953,116.10, 924,530,198.04 and 368,531,953.69 is: 508,571,289.45
Step by Step Solution
- Step 1: Write the proportion equation
669,953,116.10 : 924,530,198.04 = 368,531,953.69 : x - Step 2: Convert to fraction form
669,953,116.10/924,530,198.04 = 368,531,953.69/x - Step 3: Cross multiply
669,953,116.10x = 924,530,198.04 × 368,531,953.69 - Step 4: Simplify right side
669,953,116.10x = 340,718,920,129,083,776 - Step 5: Solve for x
x = 340,718,920,129,083,776/669,953,116.10 - Step 6: Final answer
x = 508,571,289.45
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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.