Finding the Fourth Proportional to 1,332,236,277.32, 1,838,413,226.93 and 729,290,259.81
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Solution
The fourth proportional to 1,332,236,277.32, 1,838,413,226.93 and 729,290,259.81 is: 1,006,380,686.92
Step by Step Solution
- Step 1: Write the proportion equation
1,332,236,277.32 : 1,838,413,226.93 = 729,290,259.81 : x - Step 2: Convert to fraction form
1,332,236,277.32/1,838,413,226.93 = 729,290,259.81/x - Step 3: Cross multiply
1,332,236,277.32x = 1,838,413,226.93 × 729,290,259.81 - Step 4: Simplify right side
1,332,236,277.32x = 1,340,736,859,902,273,536 - Step 5: Solve for x
x = 1,340,736,859,902,273,536/1,332,236,277.32 - Step 6: Final answer
x = 1,006,380,686.92
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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.