Finding the Fourth Proportional to 107,008,701.20, 147,681,115.20 and 60,607,209.68
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Solution
The fourth proportional to 107,008,701.20, 147,681,115.20 and 60,607,209.68 is: 83,643,107.66
Step by Step Solution
- Step 1: Write the proportion equation
107,008,701.20 : 147,681,115.20 = 60,607,209.68 : x - Step 2: Convert to fraction form
107,008,701.20/147,681,115.20 = 60,607,209.68/x - Step 3: Cross multiply
107,008,701.20x = 147,681,115.20 × 60,607,209.68 - Step 4: Simplify right side
107,008,701.20x = 8,950,540,314,702,634 - Step 5: Solve for x
x = 8,950,540,314,702,634/107,008,701.20 - Step 6: Final answer
x = 83,643,107.66
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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.