Finding the Fourth Proportional to 28,518,281.68, 39,356,893.24 and 16,129,473.42
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Solution
The fourth proportional to 28,518,281.68, 39,356,893.24 and 16,129,473.42 is: 22,259,614.75
Step by Step Solution
- Step 1: Write the proportion equation
28,518,281.68 : 39,356,893.24 = 16,129,473.42 : x - Step 2: Convert to fraction form
28,518,281.68/39,356,893.24 = 16,129,473.42/x - Step 3: Cross multiply
28,518,281.68x = 39,356,893.24 × 16,129,473.42 - Step 4: Simplify right side
28,518,281.68x = 634,805,963,408,357.75 - Step 5: Solve for x
x = 634,805,963,408,357.75/28,518,281.68 - Step 6: Final answer
x = 22,259,614.75
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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.