Finding the Fourth Proportional to 3,712,063,871.66, 5,122,745,230 and 2,018,617,559.68
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Solution
The fourth proportional to 3,712,063,871.66, 5,122,745,230 and 2,018,617,559.68 is: 2,785,745,028.26
Step by Step Solution
- Step 1: Write the proportion equation
3,712,063,871.66 : 5,122,745,230 = 2,018,617,559.68 : x - Step 2: Convert to fraction form
3,712,063,871.66/5,122,745,230 = 2,018,617,559.68/x - Step 3: Cross multiply
3,712,063,871.66x = 5,122,745,230 × 2,018,617,559.68 - Step 4: Simplify right side
3,712,063,871.66x = 10,340,863,475,044,960,256 - Step 5: Solve for x
x = 10,340,863,475,044,960,256/3,712,063,871.66 - Step 6: Final answer
x = 2,785,745,028.26
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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.