Finding the Fourth Proportional to 39,139,656.85, 54,011,246.62 and 21,737,123.08
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Solution
The fourth proportional to 39,139,656.85, 54,011,246.62 and 21,737,123.08 is: 29,996,407.99
Step by Step Solution
- Step 1: Write the proportion equation
39,139,656.85 : 54,011,246.62 = 21,737,123.08 : x - Step 2: Convert to fraction form
39,139,656.85/54,011,246.62 = 21,737,123.08/x - Step 3: Cross multiply
39,139,656.85x = 54,011,246.62 × 21,737,123.08 - Step 4: Simplify right side
39,139,656.85x = 1,174,049,115,293,803 - Step 5: Solve for x
x = 1,174,049,115,293,803/39,139,656.85 - Step 6: Final answer
x = 29,996,407.99
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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.