Finding the Fourth Proportional to 70,888,927.40, 106,120,814.70 and 42,120,254.60
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Solution
The fourth proportional to 70,888,927.40, 106,120,814.70 and 42,120,254.60 is: 63,054,074.84
Step by Step Solution
- Step 1: Write the proportion equation
70,888,927.40 : 106,120,814.70 = 42,120,254.60 : x - Step 2: Convert to fraction form
70,888,927.40/106,120,814.70 = 42,120,254.60/x - Step 3: Cross multiply
70,888,927.40x = 106,120,814.70 × 42,120,254.60 - Step 4: Simplify right side
70,888,927.40x = 4,469,835,733,523,423 - Step 5: Solve for x
x = 4,469,835,733,523,423/70,888,927.40 - Step 6: Final answer
x = 63,054,074.84
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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.