Finding the Fourth Proportional to 28,995,336.73, 40,012,488.57 and 15,941,818.99
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Solution
The fourth proportional to 28,995,336.73, 40,012,488.57 and 15,941,818.99 is: 21,999,118.55
Step by Step Solution
- Step 1: Write the proportion equation
28,995,336.73 : 40,012,488.57 = 15,941,818.99 : x - Step 2: Convert to fraction form
28,995,336.73/40,012,488.57 = 15,941,818.99/x - Step 3: Cross multiply
28,995,336.73x = 40,012,488.57 × 15,941,818.99 - Step 4: Simplify right side
28,995,336.73x = 637,871,850,122,384 - Step 5: Solve for x
x = 637,871,850,122,384/28,995,336.73 - Step 6: Final answer
x = 21,999,118.55
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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.