Finding the Fourth Proportional to 827,584,967.70, 1,241,377,451.55 and 679,631,793.30
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Solution
The fourth proportional to 827,584,967.70, 1,241,377,451.55 and 679,631,793.30 is: 1,019,447,689.95
Step by Step Solution
- Step 1: Write the proportion equation
827,584,967.70 : 1,241,377,451.55 = 679,631,793.30 : x - Step 2: Convert to fraction form
827,584,967.70/1,241,377,451.55 = 679,631,793.30/x - Step 3: Cross multiply
827,584,967.70x = 1,241,377,451.55 × 679,631,793.30 - Step 4: Simplify right side
827,584,967.70x = 843,679,583,559,110,272 - Step 5: Solve for x
x = 843,679,583,559,110,272/827,584,967.70 - Step 6: Final answer
x = 1,019,447,689.95
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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.