Finding the Fourth Proportional to 77,122,332.74, 115,682,999.34 and 19,614,107.45
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Solution
The fourth proportional to 77,122,332.74, 115,682,999.34 and 19,614,107.45 is: 29,421,034.07
Step by Step Solution
- Step 1: Write the proportion equation
77,122,332.74 : 115,682,999.34 = 19,614,107.45 : x - Step 2: Convert to fraction form
77,122,332.74/115,682,999.34 = 19,614,107.45/x - Step 3: Cross multiply
77,122,332.74x = 115,682,999.34 × 19,614,107.45 - Step 4: Simplify right side
77,122,332.74x = 2,269,018,779,193,039 - Step 5: Solve for x
x = 2,269,018,779,193,039/77,122,332.74 - Step 6: Final answer
x = 29,421,034.07
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1.5x scale
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.