Finding the Fourth Proportional to 70,767,381.18, 97,662,128.32 and 39,829,554.30
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Solution
The fourth proportional to 70,767,381.18, 97,662,128.32 and 39,829,554.30 is: 54,966,553.49
Step by Step Solution
- Step 1: Write the proportion equation
70,767,381.18 : 97,662,128.32 = 39,829,554.30 : x - Step 2: Convert to fraction form
70,767,381.18/97,662,128.32 = 39,829,554.30/x - Step 3: Cross multiply
70,767,381.18x = 97,662,128.32 × 39,829,554.30 - Step 4: Simplify right side
70,767,381.18x = 3,889,839,042,975,007 - Step 5: Solve for x
x = 3,889,839,042,975,007/70,767,381.18 - Step 6: Final answer
x = 54,966,553.49
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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.