Finding the Fourth Proportional to 163,334,216.70, 245,001,325.05 and 81,704,879.10
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Solution
The fourth proportional to 163,334,216.70, 245,001,325.05 and 81,704,879.10 is: 122,557,318.65
Step by Step Solution
- Step 1: Write the proportion equation
163,334,216.70 : 245,001,325.05 = 81,704,879.10 : x - Step 2: Convert to fraction form
163,334,216.70/245,001,325.05 = 81,704,879.10/x - Step 3: Cross multiply
163,334,216.70x = 245,001,325.05 × 81,704,879.10 - Step 4: Simplify right side
163,334,216.70x = 20,017,803,642,550,052 - Step 5: Solve for x
x = 20,017,803,642,550,052/163,334,216.70 - Step 6: Final answer
x = 122,557,318.65
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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.