Finding the Fourth Proportional to 268,348,818.12, 402,532,237.62 and 74,243,995.08
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Solution
The fourth proportional to 268,348,818.12, 402,532,237.62 and 74,243,995.08 is: 111,368,485.54
Step by Step Solution
- Step 1: Write the proportion equation
268,348,818.12 : 402,532,237.62 = 74,243,995.08 : x - Step 2: Convert to fraction form
268,348,818.12/402,532,237.62 = 74,243,995.08/x - Step 3: Cross multiply
268,348,818.12x = 402,532,237.62 × 74,243,995.08 - Step 4: Simplify right side
268,348,818.12x = 29,885,601,469,400,672 - Step 5: Solve for x
x = 29,885,601,469,400,672/268,348,818.12 - Step 6: Final answer
x = 111,368,485.54
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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.