Finding the Fourth Proportional to 8,160,442,904.80, 12,240,664,357.20 and 2,989,913,010.40
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Solution
The fourth proportional to 8,160,442,904.80, 12,240,664,357.20 and 2,989,913,010.40 is: 4,484,869,515.60
Step by Step Solution
- Step 1: Write the proportion equation
8,160,442,904.80 : 12,240,664,357.20 = 2,989,913,010.40 : x - Step 2: Convert to fraction form
8,160,442,904.80/12,240,664,357.20 = 2,989,913,010.40/x - Step 3: Cross multiply
8,160,442,904.80x = 12,240,664,357.20 × 2,989,913,010.40 - Step 4: Simplify right side
8,160,442,904.80x = 36,598,521,617,531,834,368 - Step 5: Solve for x
x = 36,598,521,617,531,834,368/8,160,442,904.80 - Step 6: Final answer
x = 4,484,869,515.60
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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.