Finding the Fourth Proportional to 28,726,054.76, 39,595,646.66 and 19,430,234.84
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Solution
The fourth proportional to 28,726,054.76, 39,595,646.66 and 19,430,234.84 is: 26,782,400.84
Step by Step Solution
- Step 1: Write the proportion equation
28,726,054.76 : 39,595,646.66 = 19,430,234.84 : x - Step 2: Convert to fraction form
28,726,054.76/39,595,646.66 = 19,430,234.84/x - Step 3: Cross multiply
28,726,054.76x = 39,595,646.66 × 19,430,234.84 - Step 4: Simplify right side
28,726,054.76x = 769,352,713,245,461.50 - Step 5: Solve for x
x = 769,352,713,245,461.50/28,726,054.76 - Step 6: Final answer
x = 26,782,400.84
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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.