Finding the Fourth Proportional to 70,982,476.80, 97,956,113.24 and 38,387,428.80
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Solution
The fourth proportional to 70,982,476.80, 97,956,113.24 and 38,387,428.80 is: 52,974,811.42
Step by Step Solution
- Step 1: Write the proportion equation
70,982,476.80 : 97,956,113.24 = 38,387,428.80 : x - Step 2: Convert to fraction form
70,982,476.80/97,956,113.24 = 38,387,428.80/x - Step 3: Cross multiply
70,982,476.80x = 97,956,113.24 × 38,387,428.80 - Step 4: Simplify right side
70,982,476.80x = 3,760,283,322,525,237 - Step 5: Solve for x
x = 3,760,283,322,525,237/70,982,476.80 - Step 6: Final answer
x = 52,974,811.42
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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.