Finding the Fourth Proportional to 21,484,400.64, 29,648,850.84 and 11,695,125.12
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Solution
The fourth proportional to 21,484,400.64, 29,648,850.84 and 11,695,125.12 is: 16,139,478.41
Step by Step Solution
- Step 1: Write the proportion equation
21,484,400.64 : 29,648,850.84 = 11,695,125.12 : x - Step 2: Convert to fraction form
21,484,400.64/29,648,850.84 = 11,695,125.12/x - Step 3: Cross multiply
21,484,400.64x = 29,648,850.84 × 11,695,125.12 - Step 4: Simplify right side
21,484,400.64x = 346,747,020,238,017.06 - Step 5: Solve for x
x = 346,747,020,238,017.06/21,484,400.64 - Step 6: Final answer
x = 16,139,478.41
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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.