Finding the Fourth Proportional to 84,301,334.37, 126,255,575.98 and 81,974,121.02
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Solution
The fourth proportional to 84,301,334.37, 126,255,575.98 and 81,974,121.02 is: 122,770,178.46
Step by Step Solution
- Step 1: Write the proportion equation
84,301,334.37 : 126,255,575.98 = 81,974,121.02 : x - Step 2: Convert to fraction form
84,301,334.37/126,255,575.98 = 81,974,121.02/x - Step 3: Cross multiply
84,301,334.37x = 126,255,575.98 × 81,974,121.02 - Step 4: Simplify right side
84,301,334.37x = 10,349,689,864,834,324 - Step 5: Solve for x
x = 10,349,689,864,834,324/84,301,334.37 - Step 6: Final answer
x = 122,770,178.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.