Finding the Fourth Proportional to 28,746,117.95, 39,670,244.51 and 15,693,926.99
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Solution
The fourth proportional to 28,746,117.95, 39,670,244.51 and 15,693,926.99 is: 21,657,947.76
Step by Step Solution
- Step 1: Write the proportion equation
28,746,117.95 : 39,670,244.51 = 15,693,926.99 : x - Step 2: Convert to fraction form
28,746,117.95/39,670,244.51 = 15,693,926.99/x - Step 3: Cross multiply
28,746,117.95x = 39,670,244.51 × 15,693,926.99 - Step 4: Simplify right side
28,746,117.95x = 622,581,920,738,567.50 - Step 5: Solve for x
x = 622,581,920,738,567.50/28,746,117.95 - Step 6: Final answer
x = 21,657,947.76
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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.