Finding the Fourth Proportional to 28,828,106.28, 39,782,783.88 and 15,775,367.76
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Solution
The fourth proportional to 28,828,106.28, 39,782,783.88 and 15,775,367.76 is: 21,770,005.98
Step by Step Solution
- Step 1: Write the proportion equation
28,828,106.28 : 39,782,783.88 = 15,775,367.76 : x - Step 2: Convert to fraction form
28,828,106.28/39,782,783.88 = 15,775,367.76/x - Step 3: Cross multiply
28,828,106.28x = 39,782,783.88 × 15,775,367.76 - Step 4: Simplify right side
28,828,106.28x = 627,588,046,223,599.75 - Step 5: Solve for x
x = 627,588,046,223,599.75/28,828,106.28 - Step 6: Final answer
x = 21,770,005.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.