Finding the Fourth Proportional to 81,760,570.17, 122,667,427.35 and 54,577,363.02
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Solution
The fourth proportional to 81,760,570.17, 122,667,427.35 and 54,577,363.02 is: 81,883,782.11
Step by Step Solution
- Step 1: Write the proportion equation
81,760,570.17 : 122,667,427.35 = 54,577,363.02 : x - Step 2: Convert to fraction form
81,760,570.17/122,667,427.35 = 54,577,363.02/x - Step 3: Cross multiply
81,760,570.17x = 122,667,427.35 × 54,577,363.02 - Step 4: Simplify right side
81,760,570.17x = 6,694,864,713,210,427 - Step 5: Solve for x
x = 6,694,864,713,210,427/81,760,570.17 - Step 6: Final answer
x = 81,883,782.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.