Finding the Fourth Proportional to 83,987,703.08, 115,903,029.30 and 45,356,535.08
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Solution
The fourth proportional to 83,987,703.08, 115,903,029.30 and 45,356,535.08 is: 62,592,017.90
Step by Step Solution
- Step 1: Write the proportion equation
83,987,703.08 : 115,903,029.30 = 45,356,535.08 : x - Step 2: Convert to fraction form
83,987,703.08/115,903,029.30 = 45,356,535.08/x - Step 3: Cross multiply
83,987,703.08x = 115,903,029.30 × 45,356,535.08 - Step 4: Simplify right side
83,987,703.08x = 5,256,959,814,323,718 - Step 5: Solve for x
x = 5,256,959,814,323,718/83,987,703.08 - Step 6: Final answer
x = 62,592,017.90
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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.