Finding the Fourth Proportional to 109,009,917.18, 163,582,950.06 and 72,643,825.08
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Solution
The fourth proportional to 109,009,917.18, 163,582,950.06 and 72,643,825.08 is: 109,011,102.09
Step by Step Solution
- Step 1: Write the proportion equation
109,009,917.18 : 163,582,950.06 = 72,643,825.08 : x - Step 2: Convert to fraction form
109,009,917.18/163,582,950.06 = 72,643,825.08/x - Step 3: Cross multiply
109,009,917.18x = 163,582,950.06 × 72,643,825.08 - Step 4: Simplify right side
109,009,917.18x = 11,883,291,210,229,016 - Step 5: Solve for x
x = 11,883,291,210,229,016/109,009,917.18 - Step 6: Final answer
x = 109,011,102.09
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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.