Finding the Fourth Proportional to 70,739,059.20, 97,618,901.67 and 39,799,154.67
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Solution
The fourth proportional to 70,739,059.20, 97,618,901.67 and 39,799,154.67 is: 54,922,270.81
Step by Step Solution
- Step 1: Write the proportion equation
70,739,059.20 : 97,618,901.67 = 39,799,154.67 : x - Step 2: Convert to fraction form
70,739,059.20/97,618,901.67 = 39,799,154.67/x - Step 3: Cross multiply
70,739,059.20x = 97,618,901.67 × 39,799,154.67 - Step 4: Simplify right side
70,739,059.20x = 3,885,149,766,279,851.50 - Step 5: Solve for x
x = 3,885,149,766,279,851.50/70,739,059.20 - Step 6: Final answer
x = 54,922,270.81
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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.