Finding the Fourth Proportional to 1,574,420,429.10, 2,361,639,471.57 and 525,155,753.46
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Solution
The fourth proportional to 1,574,420,429.10, 2,361,639,471.57 and 525,155,753.46 is: 787,736,574.79
Step by Step Solution
- Step 1: Write the proportion equation
1,574,420,429.10 : 2,361,639,471.57 = 525,155,753.46 : x - Step 2: Convert to fraction form
1,574,420,429.10/2,361,639,471.57 = 525,155,753.46/x - Step 3: Cross multiply
1,574,420,429.10x = 2,361,639,471.57 × 525,155,753.46 - Step 4: Simplify right side
1,574,420,429.10x = 1,240,228,556,093,219,584 - Step 5: Solve for x
x = 1,240,228,556,093,219,584/1,574,420,429.10 - Step 6: Final answer
x = 787,736,574.79
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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.