Finding the Fourth Proportional to 138,370,266.06, 190,941,866.91 and 79,623,451.14
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Solution
The fourth proportional to 138,370,266.06, 190,941,866.91 and 79,623,451.14 is: 109,875,125.95
Step by Step Solution
- Step 1: Write the proportion equation
138,370,266.06 : 190,941,866.91 = 79,623,451.14 : x - Step 2: Convert to fraction form
138,370,266.06/190,941,866.91 = 79,623,451.14/x - Step 3: Cross multiply
138,370,266.06x = 190,941,866.91 × 79,623,451.14 - Step 4: Simplify right side
138,370,266.06x = 15,203,450,410,488,768 - Step 5: Solve for x
x = 15,203,450,410,488,768/138,370,266.06 - Step 6: Final answer
x = 109,875,125.95
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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.