Finding the Fourth Proportional to 1,434,246,865.02, 1,979,264,772.36 and 831,534,617.88
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Solution
The fourth proportional to 1,434,246,865.02, 1,979,264,772.36 and 831,534,617.88 is: 1,147,520,148.94
Step by Step Solution
- Step 1: Write the proportion equation
1,434,246,865.02 : 1,979,264,772.36 = 831,534,617.88 : x - Step 2: Convert to fraction form
1,434,246,865.02/1,979,264,772.36 = 831,534,617.88/x - Step 3: Cross multiply
1,434,246,865.02x = 1,979,264,772.36 × 831,534,617.88 - Step 4: Simplify right side
1,434,246,865.02x = 1,645,827,176,167,717,632 - Step 5: Solve for x
x = 1,645,827,176,167,717,632/1,434,246,865.02 - Step 6: Final answer
x = 1,147,520,148.94
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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.