Finding the Fourth Proportional to 103,815,377.55, 155,731,923.68 and 27,138,282.75
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Solution
The fourth proportional to 103,815,377.55, 155,731,923.68 and 27,138,282.75 is: 40,709,739.52
Step by Step Solution
- Step 1: Write the proportion equation
103,815,377.55 : 155,731,923.68 = 27,138,282.75 : x - Step 2: Convert to fraction form
103,815,377.55/155,731,923.68 = 27,138,282.75/x - Step 3: Cross multiply
103,815,377.55x = 155,731,923.68 × 27,138,282.75 - Step 4: Simplify right side
103,815,377.55x = 4,226,296,977,893,569.50 - Step 5: Solve for x
x = 4,226,296,977,893,569.50/103,815,377.55 - Step 6: Final answer
x = 40,709,739.52
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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.