Finding the Fourth Proportional to 1,574,643,756.20, 2,361,965,634.30 and 962,423,724.20
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Solution
The fourth proportional to 1,574,643,756.20, 2,361,965,634.30 and 962,423,724.20 is: 1,443,635,586.30
Step by Step Solution
- Step 1: Write the proportion equation
1,574,643,756.20 : 2,361,965,634.30 = 962,423,724.20 : x - Step 2: Convert to fraction form
1,574,643,756.20/2,361,965,634.30 = 962,423,724.20/x - Step 3: Cross multiply
1,574,643,756.20x = 2,361,965,634.30 × 962,423,724.20 - Step 4: Simplify right side
1,574,643,756.20x = 2,273,211,762,195,421,440 - Step 5: Solve for x
x = 2,273,211,762,195,421,440/1,574,643,756.20 - Step 6: Final answer
x = 1,443,635,586.30
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1.5x scale
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.