Finding the Fourth Proportional to 1,928,028,144.13, 2,660,492,923.18 and 1,081,289,841.73
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Solution
The fourth proportional to 1,928,028,144.13, 2,660,492,923.18 and 1,081,289,841.73 is: 1,492,075,715.07
Step by Step Solution
- Step 1: Write the proportion equation
1,928,028,144.13 : 2,660,492,923.18 = 1,081,289,841.73 : x - Step 2: Convert to fraction form
1,928,028,144.13/2,660,492,923.18 = 1,081,289,841.73/x - Step 3: Cross multiply
1,928,028,144.13x = 2,660,492,923.18 × 1,081,289,841.73 - Step 4: Simplify right side
1,928,028,144.13x = 2,876,763,971,829,087,232 - Step 5: Solve for x
x = 2,876,763,971,829,087,232/1,928,028,144.13 - Step 6: Final answer
x = 1,492,075,715.07
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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.