Finding the Fourth Proportional to 2,855,087,430.05, 3,940,052,398.21 and 1,585,014,298.85
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Solution
The fourth proportional to 2,855,087,430.05, 3,940,052,398.21 and 1,585,014,298.85 is: 2,187,337,355.65
Step by Step Solution
- Step 1: Write the proportion equation
2,855,087,430.05 : 3,940,052,398.21 = 1,585,014,298.85 : x - Step 2: Convert to fraction form
2,855,087,430.05/3,940,052,398.21 = 1,585,014,298.85/x - Step 3: Cross multiply
2,855,087,430.05x = 3,940,052,398.21 × 1,585,014,298.85 - Step 4: Simplify right side
2,855,087,430.05x = 6,245,039,389,381,084,160 - Step 5: Solve for x
x = 6,245,039,389,381,084,160/2,855,087,430.05 - Step 6: Final answer
x = 2,187,337,355.65
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1.5x scale
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.