Finding the Fourth Proportional to 28,484,487.76, 39,308,632.99 and 15,431,746.67
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Solution
The fourth proportional to 28,484,487.76, 39,308,632.99 and 15,431,746.67 is: 21,295,832.02
Step by Step Solution
- Step 1: Write the proportion equation
28,484,487.76 : 39,308,632.99 = 15,431,746.67 : x - Step 2: Convert to fraction form
28,484,487.76/39,308,632.99 = 15,431,746.67/x - Step 3: Cross multiply
28,484,487.76x = 39,308,632.99 × 15,431,746.67 - Step 4: Simplify right side
28,484,487.76x = 606,600,866,504,149.25 - Step 5: Solve for x
x = 606,600,866,504,149.25/28,484,487.76 - Step 6: Final answer
x = 21,295,832.02
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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.