Finding the Fourth Proportional to 669,953,115.61, 924,530,197.36 and 368,531,953.20
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Solution
The fourth proportional to 669,953,115.61, 924,530,197.36 and 368,531,953.20 is: 508,571,288.77
Step by Step Solution
- Step 1: Write the proportion equation
669,953,115.61 : 924,530,197.36 = 368,531,953.20 : x - Step 2: Convert to fraction form
669,953,115.61/924,530,197.36 = 368,531,953.20/x - Step 3: Cross multiply
669,953,115.61x = 924,530,197.36 × 368,531,953.20 - Step 4: Simplify right side
669,953,115.61x = 340,718,919,418,996,992 - Step 5: Solve for x
x = 340,718,919,418,996,992/669,953,115.61 - Step 6: Final answer
x = 508,571,288.77
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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.