Finding the Fourth Proportional to 107,838,823.80, 161,758,235.70 and 47,372,647.80
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Solution
The fourth proportional to 107,838,823.80, 161,758,235.70 and 47,372,647.80 is: 71,058,971.70
Step by Step Solution
- Step 1: Write the proportion equation
107,838,823.80 : 161,758,235.70 = 47,372,647.80 : x - Step 2: Convert to fraction form
107,838,823.80/161,758,235.70 = 47,372,647.80/x - Step 3: Cross multiply
107,838,823.80x = 161,758,235.70 × 47,372,647.80 - Step 4: Simplify right side
107,838,823.80x = 7,662,915,928,565,485 - Step 5: Solve for x
x = 7,662,915,928,565,485/107,838,823.80 - Step 6: Final answer
x = 71,058,971.70
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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.