Finding the Fourth Proportional to 1,719,009,145.80, 2,578,513,718.70 and 614,143,306.80
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Solution
The fourth proportional to 1,719,009,145.80, 2,578,513,718.70 and 614,143,306.80 is: 921,214,960.20
Step by Step Solution
- Step 1: Write the proportion equation
1,719,009,145.80 : 2,578,513,718.70 = 614,143,306.80 : x - Step 2: Convert to fraction form
1,719,009,145.80/2,578,513,718.70 = 614,143,306.80/x - Step 3: Cross multiply
1,719,009,145.80x = 2,578,513,718.70 × 614,143,306.80 - Step 4: Simplify right side
1,719,009,145.80x = 1,583,576,941,831,582,720 - Step 5: Solve for x
x = 1,583,576,941,831,582,720/1,719,009,145.80 - Step 6: Final answer
x = 921,214,960.20
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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.