Finding the Fourth Proportional to 2,838,715,396.20, 4,258,223,472.40 and 874,917,291.96
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Solution
The fourth proportional to 2,838,715,396.20, 4,258,223,472.40 and 874,917,291.96 is: 1,312,422,285.81
Step by Step Solution
- Step 1: Write the proportion equation
2,838,715,396.20 : 4,258,223,472.40 = 874,917,291.96 : x - Step 2: Convert to fraction form
2,838,715,396.20/4,258,223,472.40 = 874,917,291.96/x - Step 3: Cross multiply
2,838,715,396.20x = 4,258,223,472.40 × 874,917,291.96 - Step 4: Simplify right side
2,838,715,396.20x = 3,725,593,349,032,716,288 - Step 5: Solve for x
x = 3,725,593,349,032,716,288/2,838,715,396.20 - Step 6: Final answer
x = 1,312,422,285.81
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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.