Finding the Fourth Proportional to 78,432,281.71, 108,234,996.55 and 43,624,222.99
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Solution
The fourth proportional to 78,432,281.71, 108,234,996.55 and 43,624,222.99 is: 60,200,564.38
Step by Step Solution
- Step 1: Write the proportion equation
78,432,281.71 : 108,234,996.55 = 43,624,222.99 : x - Step 2: Convert to fraction form
78,432,281.71/108,234,996.55 = 43,624,222.99/x - Step 3: Cross multiply
78,432,281.71x = 108,234,996.55 × 43,624,222.99 - Step 4: Simplify right side
78,432,281.71x = 4,721,667,624,819,081 - Step 5: Solve for x
x = 4,721,667,624,819,081/78,432,281.71 - Step 6: Final answer
x = 60,200,564.38
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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.