Finding the Fourth Proportional to 16,578,639.38, 22,877,985.81 and 9,515,395.21
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Solution
The fourth proportional to 16,578,639.38, 22,877,985.81 and 9,515,395.21 is: 13,130,937.45
Step by Step Solution
- Step 1: Write the proportion equation
16,578,639.38 : 22,877,985.81 = 9,515,395.21 : x - Step 2: Convert to fraction form
16,578,639.38/22,877,985.81 = 9,515,395.21/x - Step 3: Cross multiply
16,578,639.38x = 22,877,985.81 × 9,515,395.21 - Step 4: Simplify right side
16,578,639.38x = 217,693,076,580,566.34 - Step 5: Solve for x
x = 217,693,076,580,566.34/16,578,639.38 - Step 6: Final answer
x = 13,130,937.45
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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.