Finding the Fourth Proportional to 29,473,138.42, 40,671,977.18 and 16,916,259.90
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Solution
The fourth proportional to 29,473,138.42, 40,671,977.18 and 16,916,259.90 is: 23,343,891.20
Step by Step Solution
- Step 1: Write the proportion equation
29,473,138.42 : 40,671,977.18 = 16,916,259.90 : x - Step 2: Convert to fraction form
29,473,138.42/40,671,977.18 = 16,916,259.90/x - Step 3: Cross multiply
29,473,138.42x = 40,671,977.18 × 16,916,259.90 - Step 4: Simplify right side
29,473,138.42x = 688,017,736,623,749 - Step 5: Solve for x
x = 688,017,736,623,749/29,473,138.42 - Step 6: Final answer
x = 23,343,891.20
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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.