Finding the Fourth Proportional to 99,708,588.21, 137,620,809.99 and 58,468,766.61
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Solution
The fourth proportional to 99,708,588.21, 137,620,809.99 and 58,468,766.61 is: 80,700,360.56
Step by Step Solution
- Step 1: Write the proportion equation
99,708,588.21 : 137,620,809.99 = 58,468,766.61 : x - Step 2: Convert to fraction form
99,708,588.21/137,620,809.99 = 58,468,766.61/x - Step 3: Cross multiply
99,708,588.21x = 137,620,809.99 × 58,468,766.61 - Step 4: Simplify right side
99,708,588.21x = 8,046,519,019,174,728 - Step 5: Solve for x
x = 8,046,519,019,174,728/99,708,588.21 - Step 6: Final answer
x = 80,700,360.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.