Finding the Fourth Proportional to 135,686,746.80, 203,552,821.65 and 106,539,409.98
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Solution
The fourth proportional to 135,686,746.80, 203,552,821.65 and 106,539,409.98 is: 159,826,939.84
Step by Step Solution
- Step 1: Write the proportion equation
135,686,746.80 : 203,552,821.65 = 106,539,409.98 : x - Step 2: Convert to fraction form
135,686,746.80/203,552,821.65 = 106,539,409.98/x - Step 3: Cross multiply
135,686,746.80x = 203,552,821.65 × 106,539,409.98 - Step 4: Simplify right side
135,686,746.80x = 21,686,397,518,355,172 - Step 5: Solve for x
x = 21,686,397,518,355,172/135,686,746.80 - Step 6: Final answer
x = 159,826,939.84
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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.