Finding the Fourth Proportional to 1,396,290,204.59, 1,926,895,331.18 and 769,781,052.70
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Solution
The fourth proportional to 1,396,290,204.59, 1,926,895,331.18 and 769,781,052.70 is: 1,062,306,038.96
Step by Step Solution
- Step 1: Write the proportion equation
1,396,290,204.59 : 1,926,895,331.18 = 769,781,052.70 : x - Step 2: Convert to fraction form
1,396,290,204.59/1,926,895,331.18 = 769,781,052.70/x - Step 3: Cross multiply
1,396,290,204.59x = 1,926,895,331.18 × 769,781,052.70 - Step 4: Simplify right side
1,396,290,204.59x = 1,483,287,516,475,562,752 - Step 5: Solve for x
x = 1,483,287,516,475,562,752/1,396,290,204.59 - Step 6: Final answer
x = 1,062,306,038.96
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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.