Finding the Fourth Proportional to 18,389,432.21, 25,377,106.41 and 10,130,267.07
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Solution
The fourth proportional to 18,389,432.21, 25,377,106.41 and 10,130,267.07 is: 13,979,597.77
Step by Step Solution
- Step 1: Write the proportion equation
18,389,432.21 : 25,377,106.41 = 10,130,267.07 : x - Step 2: Convert to fraction form
18,389,432.21/25,377,106.41 = 10,130,267.07/x - Step 3: Cross multiply
18,389,432.21x = 25,377,106.41 × 10,130,267.07 - Step 4: Simplify right side
18,389,432.21x = 257,076,865,397,108.94 - Step 5: Solve for x
x = 257,076,865,397,108.94/18,389,432.21 - Step 6: Final answer
x = 13,979,597.77
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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.