Finding the Fourth Proportional to 99,455,646.61, 149,260,073.69 and 80,072,295.68
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Solution
The fourth proportional to 99,455,646.61, 149,260,073.69 and 80,072,295.68 is: 120,170,117.65
Step by Step Solution
- Step 1: Write the proportion equation
99,455,646.61 : 149,260,073.69 = 80,072,295.68 : x - Step 2: Convert to fraction form
99,455,646.61/149,260,073.69 = 80,072,295.68/x - Step 3: Cross multiply
99,455,646.61x = 149,260,073.69 × 80,072,295.68 - Step 4: Simplify right side
99,455,646.61x = 11,951,596,753,724,270 - Step 5: Solve for x
x = 11,951,596,753,724,270/99,455,646.61 - Step 6: Final answer
x = 120,170,117.65
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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.