Finding the Fourth Proportional to 1,258,044,958.90, 1,736,107,287.11 and 693,517,438.70
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Solution
The fourth proportional to 1,258,044,958.90, 1,736,107,287.11 and 693,517,438.70 is: 957,056,956.14
Step by Step Solution
- Step 1: Write the proportion equation
1,258,044,958.90 : 1,736,107,287.11 = 693,517,438.70 : x - Step 2: Convert to fraction form
1,258,044,958.90/1,736,107,287.11 = 693,517,438.70/x - Step 3: Cross multiply
1,258,044,958.90x = 1,736,107,287.11 × 693,517,438.70 - Step 4: Simplify right side
1,258,044,958.90x = 1,204,020,679,056,252,160 - Step 5: Solve for x
x = 1,204,020,679,056,252,160/1,258,044,958.90 - Step 6: Final answer
x = 957,056,956.14
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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.