Finding the Fourth Proportional to 729,076,589.07, 1,006,128,759.14 and 394,549,127.27
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Solution
The fourth proportional to 729,076,589.07, 1,006,128,759.14 and 394,549,127.27 is: 544,479,454.96
Step by Step Solution
- Step 1: Write the proportion equation
729,076,589.07 : 1,006,128,759.14 = 394,549,127.27 : x - Step 2: Convert to fraction form
729,076,589.07/1,006,128,759.14 = 394,549,127.27/x - Step 3: Cross multiply
729,076,589.07x = 1,006,128,759.14 × 394,549,127.27 - Step 4: Simplify right side
729,076,589.07x = 396,967,223,839,935,040 - Step 5: Solve for x
x = 396,967,223,839,935,040/729,076,589.07 - Step 6: Final answer
x = 544,479,454.96
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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.