Finding the Fourth Proportional to 131,239,117.09, 181,115,161.28 and 75,484,448.04
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Solution
The fourth proportional to 131,239,117.09, 181,115,161.28 and 75,484,448.04 is: 104,171,517.49
Step by Step Solution
- Step 1: Write the proportion equation
131,239,117.09 : 181,115,161.28 = 75,484,448.04 : x - Step 2: Convert to fraction form
131,239,117.09/181,115,161.28 = 75,484,448.04/x - Step 3: Cross multiply
131,239,117.09x = 181,115,161.28 × 75,484,448.04 - Step 4: Simplify right side
131,239,117.09x = 13,671,377,980,896,382 - Step 5: Solve for x
x = 13,671,377,980,896,382/131,239,117.09 - Step 6: Final answer
x = 104,171,517.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.