Finding the Fourth Proportional to 258,971,750.07, 388,648,943.97 and 122,657,133.57
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Solution
The fourth proportional to 258,971,750.07, 388,648,943.97 and 122,657,133.57 is: 184,076,314.96
Step by Step Solution
- Step 1: Write the proportion equation
258,971,750.07 : 388,648,943.97 = 122,657,133.57 : x - Step 2: Convert to fraction form
258,971,750.07/388,648,943.97 = 122,657,133.57/x - Step 3: Cross multiply
258,971,750.07x = 388,648,943.97 × 122,657,133.57 - Step 4: Simplify right side
258,971,750.07x = 47,670,565,432,367,736 - Step 5: Solve for x
x = 47,670,565,432,367,736/258,971,750.07 - Step 6: Final answer
x = 184,076,314.96
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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.