Finding the Fourth Proportional to 98,069,957.54, 135,336,534.99 and 56,840,764.94
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Solution
The fourth proportional to 98,069,957.54, 135,336,534.99 and 56,840,764.94 is: 78,440,251.90
Step by Step Solution
- Step 1: Write the proportion equation
98,069,957.54 : 135,336,534.99 = 56,840,764.94 : x - Step 2: Convert to fraction form
98,069,957.54/135,336,534.99 = 56,840,764.94/x - Step 3: Cross multiply
98,069,957.54x = 135,336,534.99 × 56,840,764.94 - Step 4: Simplify right side
98,069,957.54x = 7,692,632,173,160,675 - Step 5: Solve for x
x = 7,692,632,173,160,675/98,069,957.54 - Step 6: Final answer
x = 78,440,251.90
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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.