Finding the Fourth Proportional to 843,078,689.08, 1,163,570,287.98 and 485,778,034.29
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Solution
The fourth proportional to 843,078,689.08, 1,163,570,287.98 and 485,778,034.29 is: 670,443,808.59
Step by Step Solution
- Step 1: Write the proportion equation
843,078,689.08 : 1,163,570,287.98 = 485,778,034.29 : x - Step 2: Convert to fraction form
843,078,689.08/1,163,570,287.98 = 485,778,034.29/x - Step 3: Cross multiply
843,078,689.08x = 1,163,570,287.98 × 485,778,034.29 - Step 4: Simplify right side
843,078,689.08x = 565,236,887,244,926,848 - Step 5: Solve for x
x = 565,236,887,244,926,848/843,078,689.08 - Step 6: Final answer
x = 670,443,808.59
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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.