Finding the Fourth Proportional to 139,110,643.68, 209,665,872.08 and 119,911,597.62
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Solution
The fourth proportional to 139,110,643.68, 209,665,872.08 and 119,911,597.62 is: 180,729,303.11
Step by Step Solution
- Step 1: Write the proportion equation
139,110,643.68 : 209,665,872.08 = 119,911,597.62 : x - Step 2: Convert to fraction form
139,110,643.68/209,665,872.08 = 119,911,597.62/x - Step 3: Cross multiply
139,110,643.68x = 209,665,872.08 × 119,911,597.62 - Step 4: Simplify right side
139,110,643.68x = 25,141,369,687,503,356 - Step 5: Solve for x
x = 25,141,369,687,503,356/139,110,643.68 - Step 6: Final answer
x = 180,729,303.11
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.