Finding the Fourth Proportional to 70,942,518.18, 97,900,631.73 and 38,347,470.18
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Solution
The fourth proportional to 70,942,518.18, 97,900,631.73 and 38,347,470.18 is: 52,919,485.41
Step by Step Solution
- Step 1: Write the proportion equation
70,942,518.18 : 97,900,631.73 = 38,347,470.18 : x - Step 2: Convert to fraction form
70,942,518.18/97,900,631.73 = 38,347,470.18/x - Step 3: Cross multiply
70,942,518.18x = 97,900,631.73 × 38,347,470.18 - Step 4: Simplify right side
70,942,518.18x = 3,754,241,555,869,337 - Step 5: Solve for x
x = 3,754,241,555,869,337/70,942,518.18 - Step 6: Final answer
x = 52,919,485.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.