Finding the Fourth Proportional to 2,009,110,416.90, 2,772,727,674.27 and 1,205,368,161.87
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Solution
The fourth proportional to 2,009,110,416.90, 2,772,727,674.27 and 1,205,368,161.87 is: 1,663,501,235.17
Step by Step Solution
- Step 1: Write the proportion equation
2,009,110,416.90 : 2,772,727,674.27 = 1,205,368,161.87 : x - Step 2: Convert to fraction form
2,009,110,416.90/2,772,727,674.27 = 1,205,368,161.87/x - Step 3: Cross multiply
2,009,110,416.90x = 2,772,727,674.27 × 1,205,368,161.87 - Step 4: Simplify right side
2,009,110,416.90x = 3,342,157,660,100,909,568 - Step 5: Solve for x
x = 3,342,157,660,100,909,568/2,009,110,416.90 - Step 6: Final answer
x = 1,663,501,235.17
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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.