Finding the Fourth Proportional to 87,484,031.67, 120,637,536.66 and 75,135,014.67
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Solution
The fourth proportional to 87,484,031.67, 120,637,536.66 and 75,135,014.67 is: 103,608,657.65
Step by Step Solution
- Step 1: Write the proportion equation
87,484,031.67 : 120,637,536.66 = 75,135,014.67 : x - Step 2: Convert to fraction form
87,484,031.67/120,637,536.66 = 75,135,014.67/x - Step 3: Cross multiply
87,484,031.67x = 120,637,536.66 × 75,135,014.67 - Step 4: Simplify right side
87,484,031.67x = 9,064,103,086,701,762 - Step 5: Solve for x
x = 9,064,103,086,701,762/87,484,031.67 - Step 6: Final answer
x = 103,608,657.65
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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.