Finding the Fourth Proportional to 42,704,021.12, 64,042,783.58 and 15,406,765.34
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Solution
The fourth proportional to 42,704,021.12, 64,042,783.58 and 15,406,765.34 is: 23,105,368.36
Step by Step Solution
- Step 1: Write the proportion equation
42,704,021.12 : 64,042,783.58 = 15,406,765.34 : x - Step 2: Convert to fraction form
42,704,021.12/64,042,783.58 = 15,406,765.34/x - Step 3: Cross multiply
42,704,021.12x = 64,042,783.58 × 15,406,765.34 - Step 4: Simplify right side
42,704,021.12x = 986,692,138,337,465.12 - Step 5: Solve for x
x = 986,692,138,337,465.12/42,704,021.12 - Step 6: Final answer
x = 23,105,368.36
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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.