Finding the Fourth Proportional to 1,528,009,718.70, 2,292,014,578.05 and 437,492,786.70
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Solution
The fourth proportional to 1,528,009,718.70, 2,292,014,578.05 and 437,492,786.70 is: 656,239,180.05
Step by Step Solution
- Step 1: Write the proportion equation
1,528,009,718.70 : 2,292,014,578.05 = 437,492,786.70 : x - Step 2: Convert to fraction form
1,528,009,718.70/2,292,014,578.05 = 437,492,786.70/x - Step 3: Cross multiply
1,528,009,718.70x = 2,292,014,578.05 × 437,492,786.70 - Step 4: Simplify right side
1,528,009,718.70x = 1,002,739,844,908,119,168 - Step 5: Solve for x
x = 1,002,739,844,908,119,168/1,528,009,718.70 - Step 6: Final answer
x = 656,239,180.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.