Finding the Fourth Proportional to 930,362,397.48, 1,283,908,717.92 and 512,689,629.12
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Solution
The fourth proportional to 930,362,397.48, 1,283,908,717.92 and 512,689,629.12 is: 707,516,432.52
Step by Step Solution
- Step 1: Write the proportion equation
930,362,397.48 : 1,283,908,717.92 = 512,689,629.12 : x - Step 2: Convert to fraction form
930,362,397.48/1,283,908,717.92 = 512,689,629.12/x - Step 3: Cross multiply
930,362,397.48x = 1,283,908,717.92 × 512,689,629.12 - Step 4: Simplify right side
930,362,397.48x = 658,246,684,414,339,584 - Step 5: Solve for x
x = 658,246,684,414,339,584/930,362,397.48 - Step 6: Final answer
x = 707,516,432.52
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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.