Finding the Fourth Proportional to 129,473,458.65, 178,673,444.63 and 69,934,754.49
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Solution
The fourth proportional to 129,473,458.65, 178,673,444.63 and 69,934,754.49 is: 96,509,999.92
Step by Step Solution
- Step 1: Write the proportion equation
129,473,458.65 : 178,673,444.63 = 69,934,754.49 : x - Step 2: Convert to fraction form
129,473,458.65/178,673,444.63 = 69,934,754.49/x - Step 3: Cross multiply
129,473,458.65x = 178,673,444.63 × 69,934,754.49 - Step 4: Simplify right side
129,473,458.65x = 12,495,483,484,081,658 - Step 5: Solve for x
x = 12,495,483,484,081,658/129,473,458.65 - Step 6: Final answer
x = 96,509,999.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.