Finding the Fourth Proportional to 79,977,860.17, 110,369,420.14 and 43,308,431.17
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Solution
The fourth proportional to 79,977,860.17, 110,369,420.14 and 43,308,431.17 is: 59,765,620.45
Step by Step Solution
- Step 1: Write the proportion equation
79,977,860.17 : 110,369,420.14 = 43,308,431.17 : x - Step 2: Convert to fraction form
79,977,860.17/110,369,420.14 = 43,308,431.17/x - Step 3: Cross multiply
79,977,860.17x = 110,369,420.14 × 43,308,431.17 - Step 4: Simplify right side
79,977,860.17x = 4,779,926,435,021,807 - Step 5: Solve for x
x = 4,779,926,435,021,807/79,977,860.17 - Step 6: Final answer
x = 59,765,620.45
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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.