Finding the Fourth Proportional to 103,238,207.98, 142,472,330.97 and 56,199,155.38
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Solution
The fourth proportional to 103,238,207.98, 142,472,330.97 and 56,199,155.38 is: 77,556,796.29
Step by Step Solution
- Step 1: Write the proportion equation
103,238,207.98 : 142,472,330.97 = 56,199,155.38 : x - Step 2: Convert to fraction form
103,238,207.98/142,472,330.97 = 56,199,155.38/x - Step 3: Cross multiply
103,238,207.98x = 142,472,330.97 × 56,199,155.38 - Step 4: Simplify right side
103,238,207.98x = 8,006,824,665,768,295 - Step 5: Solve for x
x = 8,006,824,665,768,295/103,238,207.98 - Step 6: Final answer
x = 77,556,796.29
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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.