Finding the Fourth Proportional to 8,541,315,785.20, 12,795,849,364.20 and 4,386,617,647.60
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Solution
The fourth proportional to 8,541,315,785.20, 12,795,849,364.20 and 4,386,617,647.60 is: 6,571,645,405.53
Step by Step Solution
- Step 1: Write the proportion equation
8,541,315,785.20 : 12,795,849,364.20 = 4,386,617,647.60 : x - Step 2: Convert to fraction form
8,541,315,785.20/12,795,849,364.20 = 4,386,617,647.60/x - Step 3: Cross multiply
8,541,315,785.20x = 12,795,849,364.20 × 4,386,617,647.60 - Step 4: Simplify right side
8,541,315,785.20x = 56,130,498,637,030,965,248 - Step 5: Solve for x
x = 56,130,498,637,030,965,248/8,541,315,785.20 - Step 6: Final answer
x = 6,571,645,405.53
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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.