Finding the Fourth Proportional to 426,480,537.24, 639,720,805.86 and 103,364,409.24
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Solution
The fourth proportional to 426,480,537.24, 639,720,805.86 and 103,364,409.24 is: 155,046,613.86
Step by Step Solution
- Step 1: Write the proportion equation
426,480,537.24 : 639,720,805.86 = 103,364,409.24 : x - Step 2: Convert to fraction form
426,480,537.24/639,720,805.86 = 103,364,409.24/x - Step 3: Cross multiply
426,480,537.24x = 639,720,805.86 × 103,364,409.24 - Step 4: Simplify right side
426,480,537.24x = 66,124,363,176,255,632 - Step 5: Solve for x
x = 66,124,363,176,255,632/426,480,537.24 - Step 6: Final answer
x = 155,046,613.86
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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.