Finding the Fourth Proportional to 2,140,966,519.99, 3,211,604,561.47 and 896,145,029.31
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Solution
The fourth proportional to 2,140,966,519.99, 3,211,604,561.47 and 896,145,029.31 is: 1,344,282,330.89
Step by Step Solution
- Step 1: Write the proportion equation
2,140,966,519.99 : 3,211,604,561.47 = 896,145,029.31 : x - Step 2: Convert to fraction form
2,140,966,519.99/3,211,604,561.47 = 896,145,029.31/x - Step 3: Cross multiply
2,140,966,519.99x = 3,211,604,561.47 × 896,145,029.31 - Step 4: Simplify right side
2,140,966,519.99x = 2,878,063,463,854,604,288 - Step 5: Solve for x
x = 2,878,063,463,854,604,288/2,140,966,519.99 - Step 6: Final answer
x = 1,344,282,330.89
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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.