Finding the Fourth Proportional to 354,823,863.20, 532,235,794.80 and 124,791,120.80
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Solution
The fourth proportional to 354,823,863.20, 532,235,794.80 and 124,791,120.80 is: 187,186,681.20
Step by Step Solution
- Step 1: Write the proportion equation
354,823,863.20 : 532,235,794.80 = 124,791,120.80 : x - Step 2: Convert to fraction form
354,823,863.20/532,235,794.80 = 124,791,120.80/x - Step 3: Cross multiply
354,823,863.20x = 532,235,794.80 × 124,791,120.80 - Step 4: Simplify right side
354,823,863.20x = 66,418,301,362,970,808 - Step 5: Solve for x
x = 66,418,301,362,970,808/354,823,863.20 - Step 6: Final answer
x = 187,186,681.20
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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.