Finding the Fourth Proportional to 654,051,982.96, 980,682,813.40 and 260,639,332.84
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Solution
The fourth proportional to 654,051,982.96, 980,682,813.40 and 260,639,332.84 is: 390,801,527.82
Step by Step Solution
- Step 1: Write the proportion equation
654,051,982.96 : 980,682,813.40 = 260,639,332.84 : x - Step 2: Convert to fraction form
654,051,982.96/980,682,813.40 = 260,639,332.84/x - Step 3: Cross multiply
654,051,982.96x = 980,682,813.40 × 260,639,332.84 - Step 4: Simplify right side
654,051,982.96x = 255,604,514,212,230,208 - Step 5: Solve for x
x = 255,604,514,212,230,208/654,051,982.96 - Step 6: Final answer
x = 390,801,527.82
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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.