Finding the Fourth Proportional to 1,276,959,598.11, 1,762,203,465.95 and 690,248,734.11
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Solution
The fourth proportional to 1,276,959,598.11, 1,762,203,465.95 and 690,248,734.11 is: 952,542,831.75
Step by Step Solution
- Step 1: Write the proportion equation
1,276,959,598.11 : 1,762,203,465.95 = 690,248,734.11 : x - Step 2: Convert to fraction form
1,276,959,598.11/1,762,203,465.95 = 690,248,734.11/x - Step 3: Cross multiply
1,276,959,598.11x = 1,762,203,465.95 × 690,248,734.11 - Step 4: Simplify right side
1,276,959,598.11x = 1,216,358,711,612,790,784 - Step 5: Solve for x
x = 1,216,358,711,612,790,784/1,276,959,598.11 - Step 6: Final answer
x = 952,542,831.75
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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.