Finding the Fourth Proportional to 75,704,417.99, 113,557,528.11 and 21,113,682.09
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Solution
The fourth proportional to 75,704,417.99, 113,557,528.11 and 21,113,682.09 is: 31,670,774.46
Step by Step Solution
- Step 1: Write the proportion equation
75,704,417.99 : 113,557,528.11 = 21,113,682.09 : x - Step 2: Convert to fraction form
75,704,417.99/113,557,528.11 = 21,113,682.09/x - Step 3: Cross multiply
75,704,417.99x = 113,557,528.11 × 21,113,682.09 - Step 4: Simplify right side
75,704,417.99x = 2,397,617,547,440,778.50 - Step 5: Solve for x
x = 2,397,617,547,440,778.50/75,704,417.99 - Step 6: Final answer
x = 31,670,774.46
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1.5x scale
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.