Finding the Fourth Proportional to 684,471,790.24, 944,564,641.68 and 371,212,917.28
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Solution
The fourth proportional to 684,471,790.24, 944,564,641.68 and 371,212,917.28 is: 512,270,339.26
Step by Step Solution
- Step 1: Write the proportion equation
684,471,790.24 : 944,564,641.68 = 371,212,917.28 : x - Step 2: Convert to fraction form
684,471,790.24/944,564,641.68 = 371,212,917.28/x - Step 3: Cross multiply
684,471,790.24x = 944,564,641.68 × 371,212,917.28 - Step 4: Simplify right side
684,471,790.24x = 350,634,596,197,570,624 - Step 5: Solve for x
x = 350,634,596,197,570,624/684,471,790.24 - Step 6: Final answer
x = 512,270,339.26
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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.