Finding the Fourth Proportional to 43,485,228.47, 65,227,854.86 and 12,779,806.19
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Solution
The fourth proportional to 43,485,228.47, 65,227,854.86 and 12,779,806.19 is: 19,169,712.85
Step by Step Solution
- Step 1: Write the proportion equation
43,485,228.47 : 65,227,854.86 = 12,779,806.19 : x - Step 2: Convert to fraction form
43,485,228.47/65,227,854.86 = 12,779,806.19/x - Step 3: Cross multiply
43,485,228.47x = 65,227,854.86 × 12,779,806.19 - Step 4: Simplify right side
43,485,228.47x = 833,599,342,958,135.62 - Step 5: Solve for x
x = 833,599,342,958,135.62/43,485,228.47 - Step 6: Final answer
x = 19,169,712.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.