Finding the Fourth Proportional to 90,110,867.88, 134,796,113.79 and 71,950,533.84
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Solution
The fourth proportional to 90,110,867.88, 134,796,113.79 and 71,950,533.84 is: 107,630,217.92
Step by Step Solution
- Step 1: Write the proportion equation
90,110,867.88 : 134,796,113.79 = 71,950,533.84 : x - Step 2: Convert to fraction form
90,110,867.88/134,796,113.79 = 71,950,533.84/x - Step 3: Cross multiply
90,110,867.88x = 134,796,113.79 × 71,950,533.84 - Step 4: Simplify right side
90,110,867.88x = 9,698,652,346,747,886 - Step 5: Solve for x
x = 9,698,652,346,747,886/90,110,867.88 - Step 6: Final answer
x = 107,630,217.92
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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.