Finding the Fourth Proportional to 77,220,164.15, 106,565,907.53 and 45,432,552.63
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Solution
The fourth proportional to 77,220,164.15, 106,565,907.53 and 45,432,552.63 is: 62,698,146.99
Step by Step Solution
- Step 1: Write the proportion equation
77,220,164.15 : 106,565,907.53 = 45,432,552.63 : x - Step 2: Convert to fraction form
77,220,164.15/106,565,907.53 = 45,432,552.63/x - Step 3: Cross multiply
77,220,164.15x = 106,565,907.53 × 45,432,552.63 - Step 4: Simplify right side
77,220,164.15x = 4,841,561,202,534,020 - Step 5: Solve for x
x = 4,841,561,202,534,020/77,220,164.15 - Step 6: Final answer
x = 62,698,146.99
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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.