Finding the Fourth Proportional to 100,145,726.46, 149,959,878.96 and 69,117,128.14
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Solution
The fourth proportional to 100,145,726.46, 149,959,878.96 and 69,117,128.14 is: 103,497,138.98
Step by Step Solution
- Step 1: Write the proportion equation
100,145,726.46 : 149,959,878.96 = 69,117,128.14 : x - Step 2: Convert to fraction form
100,145,726.46/149,959,878.96 = 69,117,128.14/x - Step 3: Cross multiply
100,145,726.46x = 149,959,878.96 × 69,117,128.14 - Step 4: Simplify right side
100,145,726.46x = 10,364,796,169,937,210 - Step 5: Solve for x
x = 10,364,796,169,937,210/100,145,726.46 - Step 6: Final answer
x = 103,497,138.98
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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.