Finding the Fourth Proportional to 7,872,615.84, 11,812,656.24 and 4,684,041.12
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Solution
The fourth proportional to 7,872,615.84, 11,812,656.24 and 4,684,041.12 is: 7,028,282.43
Step by Step Solution
- Step 1: Write the proportion equation
7,872,615.84 : 11,812,656.24 = 4,684,041.12 : x - Step 2: Convert to fraction form
7,872,615.84/11,812,656.24 = 4,684,041.12/x - Step 3: Cross multiply
7,872,615.84x = 11,812,656.24 × 4,684,041.12 - Step 4: Simplify right side
7,872,615.84x = 55,330,967,564,584.59 - Step 5: Solve for x
x = 55,330,967,564,584.59/7,872,615.84 - Step 6: Final answer
x = 7,028,282.43
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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.