Finding the Fourth Proportional to 75,748,622.47, 113,606,440.81 and 20,415,165.98
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Solution
The fourth proportional to 75,748,622.47, 113,606,440.81 and 20,415,165.98 is: 30,618,303.93
Step by Step Solution
- Step 1: Write the proportion equation
75,748,622.47 : 113,606,440.81 = 20,415,165.98 : x - Step 2: Convert to fraction form
75,748,622.47/113,606,440.81 = 20,415,165.98/x - Step 3: Cross multiply
75,748,622.47x = 113,606,440.81 × 20,415,165.98 - Step 4: Simplify right side
75,748,622.47x = 2,319,294,344,914,126 - Step 5: Solve for x
x = 2,319,294,344,914,126/75,748,622.47 - Step 6: Final answer
x = 30,618,303.93
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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.