Finding the Fourth Proportional to 2,472,905,907.20, 3,709,358,860.80 and 1,326,288,051.20
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Solution
The fourth proportional to 2,472,905,907.20, 3,709,358,860.80 and 1,326,288,051.20 is: 1,989,432,076.80
Step by Step Solution
- Step 1: Write the proportion equation
2,472,905,907.20 : 3,709,358,860.80 = 1,326,288,051.20 : x - Step 2: Convert to fraction form
2,472,905,907.20/3,709,358,860.80 = 1,326,288,051.20/x - Step 3: Cross multiply
2,472,905,907.20x = 3,709,358,860.80 × 1,326,288,051.20 - Step 4: Simplify right side
2,472,905,907.20x = 4,919,678,334,691,884,032 - Step 5: Solve for x
x = 4,919,678,334,691,884,032/2,472,905,907.20 - Step 6: Final answer
x = 1,989,432,076.80
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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.