Finding the Fourth Proportional to 74,506,989.70, 111,888,010.95 and 40,494,765.70
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Solution
The fourth proportional to 74,506,989.70, 111,888,010.95 and 40,494,765.70 is: 60,811,459.52
Step by Step Solution
- Step 1: Write the proportion equation
74,506,989.70 : 111,888,010.95 = 40,494,765.70 : x - Step 2: Convert to fraction form
74,506,989.70/111,888,010.95 = 40,494,765.70/x - Step 3: Cross multiply
74,506,989.70x = 111,888,010.95 × 40,494,765.70 - Step 4: Simplify right side
74,506,989.70x = 4,530,878,788,059,285 - Step 5: Solve for x
x = 4,530,878,788,059,285/74,506,989.70 - Step 6: Final answer
x = 60,811,459.52
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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.