Finding the Fourth Proportional to 81,648,000.90, 122,472,001.35 and 49,399,373.70
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Solution
The fourth proportional to 81,648,000.90, 122,472,001.35 and 49,399,373.70 is: 74,099,060.55
Step by Step Solution
- Step 1: Write the proportion equation
81,648,000.90 : 122,472,001.35 = 49,399,373.70 : x - Step 2: Convert to fraction form
81,648,000.90/122,472,001.35 = 49,399,373.70/x - Step 3: Cross multiply
81,648,000.90x = 122,472,001.35 × 49,399,373.70 - Step 4: Simplify right side
81,648,000.90x = 6,050,040,162,475,555 - Step 5: Solve for x
x = 6,050,040,162,475,555/81,648,000.90 - Step 6: Final answer
x = 74,099,060.55
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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.