Finding the Fourth Proportional to 1,485,133,009.92, 2,049,363,573.12 and 858,641,811.84
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Solution
The fourth proportional to 1,485,133,009.92, 2,049,363,573.12 and 858,641,811.84 is: 1,184,856,332.59
Step by Step Solution
- Step 1: Write the proportion equation
1,485,133,009.92 : 2,049,363,573.12 = 858,641,811.84 : x - Step 2: Convert to fraction form
1,485,133,009.92/2,049,363,573.12 = 858,641,811.84/x - Step 3: Cross multiply
1,485,133,009.92x = 2,049,363,573.12 × 858,641,811.84 - Step 4: Simplify right side
1,485,133,009.92x = 1,759,669,251,542,653,184 - Step 5: Solve for x
x = 1,759,669,251,542,653,184/1,485,133,009.92 - Step 6: Final answer
x = 1,184,856,332.59
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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.