Finding the Fourth Proportional to 77,993,905.94, 107,743,703.52 and 62,292,315.40
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Solution
The fourth proportional to 77,993,905.94, 107,743,703.52 and 62,292,315.40 is: 86,052,938.13
Step by Step Solution
- Step 1: Write the proportion equation
77,993,905.94 : 107,743,703.52 = 62,292,315.40 : x - Step 2: Convert to fraction form
77,993,905.94/107,743,703.52 = 62,292,315.40/x - Step 3: Cross multiply
77,993,905.94x = 107,743,703.52 × 62,292,315.40 - Step 4: Simplify right side
77,993,905.94x = 6,711,604,762,031,930 - Step 5: Solve for x
x = 6,711,604,762,031,930/77,993,905.94 - Step 6: Final answer
x = 86,052,938.13
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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.