Finding the Fourth Proportional to 76,903,421.86, 115,360,275.78 and 27,042,285.99
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Solution
The fourth proportional to 76,903,421.86, 115,360,275.78 and 27,042,285.99 is: 40,565,237.46
Step by Step Solution
- Step 1: Write the proportion equation
76,903,421.86 : 115,360,275.78 = 27,042,285.99 : x - Step 2: Convert to fraction form
76,903,421.86/115,360,275.78 = 27,042,285.99/x - Step 3: Cross multiply
76,903,421.86x = 115,360,275.78 × 27,042,285.99 - Step 4: Simplify right side
76,903,421.86x = 3,119,605,569,392,819 - Step 5: Solve for x
x = 3,119,605,569,392,819/76,903,421.86 - Step 6: Final answer
x = 40,565,237.46
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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.