Finding the Fourth Proportional to 921,622,660.71, 1,382,435,321.58 and 376,364,194.71
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Solution
The fourth proportional to 921,622,660.71, 1,382,435,321.58 and 376,364,194.71 is: 564,546,835.41
Step by Step Solution
- Step 1: Write the proportion equation
921,622,660.71 : 1,382,435,321.58 = 376,364,194.71 : x - Step 2: Convert to fraction form
921,622,660.71/1,382,435,321.58 = 376,364,194.71/x - Step 3: Cross multiply
921,622,660.71x = 1,382,435,321.58 × 376,364,194.71 - Step 4: Simplify right side
921,622,660.71x = 520,299,156,545,116,544 - Step 5: Solve for x
x = 520,299,156,545,116,544/921,622,660.71 - Step 6: Final answer
x = 564,546,835.41
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Double scale
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1.5x scale
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.