Finding the Fourth Proportional to 134,829,362.36, 186,011,579.95 and 78,304,486.07
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Solution
The fourth proportional to 134,829,362.36, 186,011,579.95 and 78,304,486.07 is: 108,029,444.90
Step by Step Solution
- Step 1: Write the proportion equation
134,829,362.36 : 186,011,579.95 = 78,304,486.07 : x - Step 2: Convert to fraction form
134,829,362.36/186,011,579.95 = 78,304,486.07/x - Step 3: Cross multiply
134,829,362.36x = 186,011,579.95 × 78,304,486.07 - Step 4: Simplify right side
134,829,362.36x = 14,565,541,171,020,078 - Step 5: Solve for x
x = 14,565,541,171,020,078/134,829,362.36 - Step 6: Final answer
x = 108,029,444.90
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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.