Finding the Fourth Proportional to 77,437,830.41, 106,860,932.27 and 42,154,902
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Solution
The fourth proportional to 77,437,830.41, 106,860,932.27 and 42,154,902 is: 58,171,982.66
Step by Step Solution
- Step 1: Write the proportion equation
77,437,830.41 : 106,860,932.27 = 42,154,902 : x - Step 2: Convert to fraction form
77,437,830.41/106,860,932.27 = 42,154,902/x - Step 3: Cross multiply
77,437,830.41x = 106,860,932.27 × 42,154,902 - Step 4: Simplify right side
77,437,830.41x = 4,504,712,127,259,713 - Step 5: Solve for x
x = 4,504,712,127,259,713/77,437,830.41 - Step 6: Final answer
x = 58,171,982.66
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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.