Finding the Fourth Proportional to 2,874,789,660.80, 3,967,221,688.88 and 1,554,690,216.80
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Solution
The fourth proportional to 2,874,789,660.80, 3,967,221,688.88 and 1,554,690,216.80 is: 2,145,478,965.53
Step by Step Solution
- Step 1: Write the proportion equation
2,874,789,660.80 : 3,967,221,688.88 = 1,554,690,216.80 : x - Step 2: Convert to fraction form
2,874,789,660.80/3,967,221,688.88 = 1,554,690,216.80/x - Step 3: Cross multiply
2,874,789,660.80x = 3,967,221,688.88 × 1,554,690,216.80 - Step 4: Simplify right side
2,874,789,660.80x = 6,167,800,747,578,509,312 - Step 5: Solve for x
x = 6,167,800,747,578,509,312/2,874,789,660.80 - Step 6: Final answer
x = 2,145,478,965.53
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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.