Finding the Fourth Proportional to 1,259,713,059.80, 1,889,569,589.70 and 797,146,813.40
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Solution
The fourth proportional to 1,259,713,059.80, 1,889,569,589.70 and 797,146,813.40 is: 1,195,720,220.10
Step by Step Solution
- Step 1: Write the proportion equation
1,259,713,059.80 : 1,889,569,589.70 = 797,146,813.40 : x - Step 2: Convert to fraction form
1,259,713,059.80/1,889,569,589.70 = 797,146,813.40/x - Step 3: Cross multiply
1,259,713,059.80x = 1,889,569,589.70 × 797,146,813.40 - Step 4: Simplify right side
1,259,713,059.80x = 1,506,264,377,126,900,480 - Step 5: Solve for x
x = 1,506,264,377,126,900,480/1,259,713,059.80 - Step 6: Final answer
x = 1,195,720,220.10
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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.