Finding the Fourth Proportional to 151,928,632.97, 209,597,312.12 and 101,709,030.62
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Solution
The fourth proportional to 151,928,632.97, 209,597,312.12 and 101,709,030.62 is: 140,315,482.46
Step by Step Solution
- Step 1: Write the proportion equation
151,928,632.97 : 209,597,312.12 = 101,709,030.62 : x - Step 2: Convert to fraction form
151,928,632.97/209,597,312.12 = 101,709,030.62/x - Step 3: Cross multiply
151,928,632.97x = 209,597,312.12 × 101,709,030.62 - Step 4: Simplify right side
151,928,632.97x = 21,317,939,434,726,244 - Step 5: Solve for x
x = 21,317,939,434,726,244/151,928,632.97 - Step 6: Final answer
x = 140,315,482.46
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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.