Finding the Fourth Proportional to 77,593,362.60, 107,038,767.87 and 48,213,532.65
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Solution
The fourth proportional to 77,593,362.60, 107,038,767.87 and 48,213,532.65 is: 66,509,775.53
Step by Step Solution
- Step 1: Write the proportion equation
77,593,362.60 : 107,038,767.87 = 48,213,532.65 : x - Step 2: Convert to fraction form
77,593,362.60/107,038,767.87 = 48,213,532.65/x - Step 3: Cross multiply
77,593,362.60x = 107,038,767.87 × 48,213,532.65 - Step 4: Simplify right side
77,593,362.60x = 5,160,717,128,980,823 - Step 5: Solve for x
x = 5,160,717,128,980,823/77,593,362.60 - Step 6: Final answer
x = 66,509,775.53
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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.