Finding the Fourth Proportional to 77,124,585.96, 115,610,241.60 and 38,668,727.88
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Solution
The fourth proportional to 77,124,585.96, 115,610,241.60 and 38,668,727.88 is: 57,964,667.39
Step by Step Solution
- Step 1: Write the proportion equation
77,124,585.96 : 115,610,241.60 = 38,668,727.88 : x - Step 2: Convert to fraction form
77,124,585.96/115,610,241.60 = 38,668,727.88/x - Step 3: Cross multiply
77,124,585.96x = 115,610,241.60 × 38,668,727.88 - Step 4: Simplify right side
77,124,585.96x = 4,470,500,972,571,456 - Step 5: Solve for x
x = 4,470,500,972,571,456/77,124,585.96 - Step 6: Final answer
x = 57,964,667.39
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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.