Finding the Fourth Proportional to 39,949,462.08, 55,129,865.76 and 21,614,345.28
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Solution
The fourth proportional to 39,949,462.08, 55,129,865.76 and 21,614,345.28 is: 29,827,584.45
Step by Step Solution
- Step 1: Write the proportion equation
39,949,462.08 : 55,129,865.76 = 21,614,345.28 : x - Step 2: Convert to fraction form
39,949,462.08/55,129,865.76 = 21,614,345.28/x - Step 3: Cross multiply
39,949,462.08x = 55,129,865.76 × 21,614,345.28 - Step 4: Simplify right side
39,949,462.08x = 1,191,595,953,776,689.75 - Step 5: Solve for x
x = 1,191,595,953,776,689.75/39,949,462.08 - Step 6: Final answer
x = 29,827,584.45
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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.