Finding the Fourth Proportional to 163,775,309.70, 245,662,964.55 and 77,681,867.70
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Solution
The fourth proportional to 163,775,309.70, 245,662,964.55 and 77,681,867.70 is: 116,522,801.55
Step by Step Solution
- Step 1: Write the proportion equation
163,775,309.70 : 245,662,964.55 = 77,681,867.70 : x - Step 2: Convert to fraction form
163,775,309.70/245,662,964.55 = 77,681,867.70/x - Step 3: Cross multiply
163,775,309.70x = 245,662,964.55 × 77,681,867.70 - Step 4: Simplify right side
163,775,309.70x = 19,083,557,910,962,892 - Step 5: Solve for x
x = 19,083,557,910,962,892/163,775,309.70 - Step 6: Final answer
x = 116,522,801.55
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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.