Finding the Fourth Proportional to 115,710,110.40, 172,542,853.68 and 114,671,547.84
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Solution
The fourth proportional to 115,710,110.40, 172,542,853.68 and 114,671,547.84 is: 170,994,185.66
Step by Step Solution
- Step 1: Write the proportion equation
115,710,110.40 : 172,542,853.68 = 114,671,547.84 : x - Step 2: Convert to fraction form
115,710,110.40/172,542,853.68 = 114,671,547.84/x - Step 3: Cross multiply
115,710,110.40x = 172,542,853.68 × 114,671,547.84 - Step 4: Simplify right side
115,710,110.40x = 19,785,756,100,216,240 - Step 5: Solve for x
x = 19,785,756,100,216,240/115,710,110.40 - Step 6: Final answer
x = 170,994,185.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.