Finding the Fourth Proportional to 79,748,140.28, 119,622,197.66 and 19,163,866.28
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Solution
The fourth proportional to 79,748,140.28, 119,622,197.66 and 19,163,866.28 is: 28,745,796.35
Step by Step Solution
- Step 1: Write the proportion equation
79,748,140.28 : 119,622,197.66 = 19,163,866.28 : x - Step 2: Convert to fraction form
79,748,140.28/119,622,197.66 = 19,163,866.28/x - Step 3: Cross multiply
79,748,140.28x = 119,622,197.66 × 19,163,866.28 - Step 4: Simplify right side
79,748,140.28x = 2,292,423,799,382,038.50 - Step 5: Solve for x
x = 2,292,423,799,382,038.50/79,748,140.28 - Step 6: Final answer
x = 28,745,796.35
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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.