Finding the Fourth Proportional to 7,678,225,510.34, 11,517,768,730.49 and 2,157,053,079.74
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Solution
The fourth proportional to 7,678,225,510.34, 11,517,768,730.49 and 2,157,053,079.74 is: 3,235,700,550.65
Step by Step Solution
- Step 1: Write the proportion equation
7,678,225,510.34 : 11,517,768,730.49 = 2,157,053,079.74 : x - Step 2: Convert to fraction form
7,678,225,510.34/11,517,768,730.49 = 2,157,053,079.74/x - Step 3: Cross multiply
7,678,225,510.34x = 11,517,768,730.49 × 2,157,053,079.74 - Step 4: Simplify right side
7,678,225,510.34x = 24,844,438,511,768,154,112 - Step 5: Solve for x
x = 24,844,438,511,768,154,112/7,678,225,510.34 - Step 6: Final answer
x = 3,235,700,550.65
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1.5x scale
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.