Finding the Fourth Proportional to 77,201,227.60, 115,805,565.79 and 25,384,683.08
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Solution
The fourth proportional to 77,201,227.60, 115,805,565.79 and 25,384,683.08 is: 38,078,249.25
Step by Step Solution
- Step 1: Write the proportion equation
77,201,227.60 : 115,805,565.79 = 25,384,683.08 : x - Step 2: Convert to fraction form
77,201,227.60/115,805,565.79 = 25,384,683.08/x - Step 3: Cross multiply
77,201,227.60x = 115,805,565.79 × 25,384,683.08 - Step 4: Simplify right side
77,201,227.60x = 2,939,687,586,705,292 - Step 5: Solve for x
x = 2,939,687,586,705,292/77,201,227.60 - Step 6: Final answer
x = 38,078,249.25
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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.