Finding the Fourth Proportional to 4,224,140,178.40, 6,336,178,774.80 and 1,276,414,098.40
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Solution
The fourth proportional to 4,224,140,178.40, 6,336,178,774.80 and 1,276,414,098.40 is: 1,914,611,631.38
Step by Step Solution
- Step 1: Write the proportion equation
4,224,140,178.40 : 6,336,178,774.80 = 1,276,414,098.40 : x - Step 2: Convert to fraction form
4,224,140,178.40/6,336,178,774.80 = 1,276,414,098.40/x - Step 3: Cross multiply
4,224,140,178.40x = 6,336,178,774.80 × 1,276,414,098.40 - Step 4: Simplify right side
4,224,140,178.40x = 8,087,587,918,137,559,040 - Step 5: Solve for x
x = 8,087,587,918,137,559,040/4,224,140,178.40 - Step 6: Final answer
x = 1,914,611,631.38
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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.