Finding the Fourth Proportional to 1,539,436,919.97, 2,309,155,339.10 and 710,145,202.42
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Solution
The fourth proportional to 1,539,436,919.97, 2,309,155,339.10 and 710,145,202.42 is: 1,065,217,784.78
Step by Step Solution
- Step 1: Write the proportion equation
1,539,436,919.97 : 2,309,155,339.10 = 710,145,202.42 : x - Step 2: Convert to fraction form
1,539,436,919.97/2,309,155,339.10 = 710,145,202.42/x - Step 3: Cross multiply
1,539,436,919.97x = 2,309,155,339.10 × 710,145,202.42 - Step 4: Simplify right side
1,539,436,919.97x = 1,639,835,585,704,392,960 - Step 5: Solve for x
x = 1,639,835,585,704,392,960/1,539,436,919.97 - Step 6: Final answer
x = 1,065,217,784.78
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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.