Finding the Fourth Proportional to 2,187,367,636.76, 3,280,774,698.38 and 693,413,581.14
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Solution
The fourth proportional to 2,187,367,636.76, 3,280,774,698.38 and 693,413,581.14 is: 1,040,032,637.53
Step by Step Solution
- Step 1: Write the proportion equation
2,187,367,636.76 : 3,280,774,698.38 = 693,413,581.14 : x - Step 2: Convert to fraction form
2,187,367,636.76/3,280,774,698.38 = 693,413,581.14/x - Step 3: Cross multiply
2,187,367,636.76x = 3,280,774,698.38 × 693,413,581.14 - Step 4: Simplify right side
2,187,367,636.76x = 2,274,933,732,517,179,136 - Step 5: Solve for x
x = 2,274,933,732,517,179,136/2,187,367,636.76 - Step 6: Final answer
x = 1,040,032,637.53
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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.