Finding the Fourth Proportional to 28,461,483.96, 39,276,572.94 and 15,408,408.12
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Solution
The fourth proportional to 28,461,483.96, 39,276,572.94 and 15,408,408.12 is: 21,263,454.37
Step by Step Solution
- Step 1: Write the proportion equation
28,461,483.96 : 39,276,572.94 = 15,408,408.12 : x - Step 2: Convert to fraction form
28,461,483.96/39,276,572.94 = 15,408,408.12/x - Step 3: Cross multiply
28,461,483.96x = 39,276,572.94 × 15,408,408.12 - Step 4: Simplify right side
28,461,483.96x = 605,189,465,414,468.25 - Step 5: Solve for x
x = 605,189,465,414,468.25/28,461,483.96 - Step 6: Final answer
x = 21,263,454.37
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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.