Finding the Fourth Proportional to 149,063,055.79, 205,713,806.14 and 82,987,750.70
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Solution
The fourth proportional to 149,063,055.79, 205,713,806.14 and 82,987,750.70 is: 114,526,875.68
Step by Step Solution
- Step 1: Write the proportion equation
149,063,055.79 : 205,713,806.14 = 82,987,750.70 : x - Step 2: Convert to fraction form
149,063,055.79/205,713,806.14 = 82,987,750.70/x - Step 3: Cross multiply
149,063,055.79x = 205,713,806.14 × 82,987,750.70 - Step 4: Simplify right side
149,063,055.79x = 17,071,726,058,465,878 - Step 5: Solve for x
x = 17,071,726,058,465,878/149,063,055.79 - Step 6: Final answer
x = 114,526,875.68
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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.