Finding the Fourth Proportional to 83,434,816.99, 115,131,751.41 and 48,163,985.12
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Solution
The fourth proportional to 83,434,816.99, 115,131,751.41 and 48,163,985.12 is: 66,461,510.46
Step by Step Solution
- Step 1: Write the proportion equation
83,434,816.99 : 115,131,751.41 = 48,163,985.12 : x - Step 2: Convert to fraction form
83,434,816.99/115,131,751.41 = 48,163,985.12/x - Step 3: Cross multiply
83,434,816.99x = 115,131,751.41 × 48,163,985.12 - Step 4: Simplify right side
83,434,816.99x = 5,545,203,961,750,779 - Step 5: Solve for x
x = 5,545,203,961,750,779/83,434,816.99 - Step 6: Final answer
x = 66,461,510.46
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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.