Finding the Fourth Proportional to 77,995,017.92, 107,745,237.48 and 62,293,427.49
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Solution
The fourth proportional to 77,995,017.92, 107,745,237.48 and 62,293,427.49 is: 86,054,472.68
Step by Step Solution
- Step 1: Write the proportion equation
77,995,017.92 : 107,745,237.48 = 62,293,427.49 : x - Step 2: Convert to fraction form
77,995,017.92/107,745,237.48 = 62,293,427.49/x - Step 3: Cross multiply
77,995,017.92x = 107,745,237.48 × 62,293,427.49 - Step 4: Simplify right side
77,995,017.92x = 6,711,820,138,353,211 - Step 5: Solve for x
x = 6,711,820,138,353,211/77,995,017.92 - Step 6: Final answer
x = 86,054,472.68
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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.