Finding the Fourth Proportional to 102,188,077.20, 153,282,115.80 and 48,440,365.20
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Solution
The fourth proportional to 102,188,077.20, 153,282,115.80 and 48,440,365.20 is: 72,660,547.80
Step by Step Solution
- Step 1: Write the proportion equation
102,188,077.20 : 153,282,115.80 = 48,440,365.20 : x - Step 2: Convert to fraction form
102,188,077.20/153,282,115.80 = 48,440,365.20/x - Step 3: Cross multiply
102,188,077.20x = 153,282,115.80 × 48,440,365.20 - Step 4: Simplify right side
102,188,077.20x = 7,425,041,667,980,691 - Step 5: Solve for x
x = 7,425,041,667,980,691/102,188,077.20 - Step 6: Final answer
x = 72,660,547.80
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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.