Finding the Fourth Proportional to 115,675,990.81, 173,507,875.15 and 37,942,655.49
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Solution
The fourth proportional to 115,675,990.81, 173,507,875.15 and 37,942,655.49 is: 56,911,978.75
Step by Step Solution
- Step 1: Write the proportion equation
115,675,990.81 : 173,507,875.15 = 37,942,655.49 : x - Step 2: Convert to fraction form
115,675,990.81/173,507,875.15 = 37,942,655.49/x - Step 3: Cross multiply
115,675,990.81x = 173,507,875.15 × 37,942,655.49 - Step 4: Simplify right side
115,675,990.81x = 6,583,349,531,106,401 - Step 5: Solve for x
x = 6,583,349,531,106,401/115,675,990.81 - Step 6: Final answer
x = 56,911,978.75
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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.