Finding the Fourth Proportional to 70,362,579.68, 97,103,943.84 and 40,582,152.94
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Solution
The fourth proportional to 70,362,579.68, 97,103,943.84 and 40,582,152.94 is: 56,005,438.09
Step by Step Solution
- Step 1: Write the proportion equation
70,362,579.68 : 97,103,943.84 = 40,582,152.94 : x - Step 2: Convert to fraction form
70,362,579.68/97,103,943.84 = 40,582,152.94/x - Step 3: Cross multiply
70,362,579.68x = 97,103,943.84 × 40,582,152.94 - Step 4: Simplify right side
70,362,579.68x = 3,940,687,099,992,051 - Step 5: Solve for x
x = 3,940,687,099,992,051/70,362,579.68 - Step 6: Final answer
x = 56,005,438.09
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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.