Finding the Fourth Proportional to 889,236,194.11, 1,227,153,258.90 and 492,765,804.74
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Solution
The fourth proportional to 889,236,194.11, 1,227,153,258.90 and 492,765,804.74 is: 680,020,861.92
Step by Step Solution
- Step 1: Write the proportion equation
889,236,194.11 : 1,227,153,258.90 = 492,765,804.74 : x - Step 2: Convert to fraction form
889,236,194.11/1,227,153,258.90 = 492,765,804.74/x - Step 3: Cross multiply
889,236,194.11x = 1,227,153,258.90 × 492,765,804.74 - Step 4: Simplify right side
889,236,194.11x = 604,699,163,164,240,000 - Step 5: Solve for x
x = 604,699,163,164,240,000/889,236,194.11 - Step 6: Final answer
x = 680,020,861.92
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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.