Finding the Fourth Proportional to 70,982,486.80, 97,956,127.04 and 38,387,438.80
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Solution
The fourth proportional to 70,982,486.80, 97,956,127.04 and 38,387,438.80 is: 52,974,825.22
Step by Step Solution
- Step 1: Write the proportion equation
70,982,486.80 : 97,956,127.04 = 38,387,438.80 : x - Step 2: Convert to fraction form
70,982,486.80/97,956,127.04 = 38,387,438.80/x - Step 3: Cross multiply
70,982,486.80x = 97,956,127.04 × 38,387,438.80 - Step 4: Simplify right side
70,982,486.80x = 3,760,284,831,833,025 - Step 5: Solve for x
x = 3,760,284,831,833,025/70,982,486.80 - Step 6: Final answer
x = 52,974,825.22
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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.