Finding the Fourth Proportional to 42,578,918.07, 63,879,149.33 and 11,873,500.74
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Solution
The fourth proportional to 42,578,918.07, 63,879,149.33 and 11,873,500.74 is: 17,813,255.03
Step by Step Solution
- Step 1: Write the proportion equation
42,578,918.07 : 63,879,149.33 = 11,873,500.74 : x - Step 2: Convert to fraction form
42,578,918.07/63,879,149.33 = 11,873,500.74/x - Step 3: Cross multiply
42,578,918.07x = 63,879,149.33 × 11,873,500.74 - Step 4: Simplify right side
42,578,918.07x = 758,469,126,461,562.25 - Step 5: Solve for x
x = 758,469,126,461,562.25/42,578,918.07 - Step 6: Final answer
x = 17,813,255.03
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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.