Finding the Fourth Proportional to 1,258,895,188.76, 1,737,244,926.68 and 694,367,946.64
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Solution
The fourth proportional to 1,258,895,188.76, 1,737,244,926.68 and 694,367,946.64 is: 958,210,980.00
Step by Step Solution
- Step 1: Write the proportion equation
1,258,895,188.76 : 1,737,244,926.68 = 694,367,946.64 : x - Step 2: Convert to fraction form
1,258,895,188.76/1,737,244,926.68 = 694,367,946.64/x - Step 3: Cross multiply
1,258,895,188.76x = 1,737,244,926.68 × 694,367,946.64 - Step 4: Simplify right side
1,258,895,188.76x = 1,206,287,192,542,339,072 - Step 5: Solve for x
x = 1,206,287,192,542,339,072/1,258,895,188.76 - Step 6: Final answer
x = 958,210,980.00
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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.