Finding the Fourth Proportional to 2,515,686,475.20, 3,773,529,712.80 and 768,885,835.20
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Solution
The fourth proportional to 2,515,686,475.20, 3,773,529,712.80 and 768,885,835.20 is: 1,153,328,752.80
Step by Step Solution
- Step 1: Write the proportion equation
2,515,686,475.20 : 3,773,529,712.80 = 768,885,835.20 : x - Step 2: Convert to fraction form
2,515,686,475.20/3,773,529,712.80 = 768,885,835.20/x - Step 3: Cross multiply
2,515,686,475.20x = 3,773,529,712.80 × 768,885,835.20 - Step 4: Simplify right side
2,515,686,475.20x = 2,901,413,544,878,244,352 - Step 5: Solve for x
x = 2,901,413,544,878,244,352/2,515,686,475.20 - Step 6: Final answer
x = 1,153,328,752.80
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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.