Finding the Fourth Proportional to 5,309,717,372.13, 7,327,410,690.98 and 2,930,855,758.40
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Solution
The fourth proportional to 5,309,717,372.13, 7,327,410,690.98 and 2,930,855,758.40 is: 4,044,581,342.60
Step by Step Solution
- Step 1: Write the proportion equation
5,309,717,372.13 : 7,327,410,690.98 = 2,930,855,758.40 : x - Step 2: Convert to fraction form
5,309,717,372.13/7,327,410,690.98 = 2,930,855,758.40/x - Step 3: Cross multiply
5,309,717,372.13x = 7,327,410,690.98 × 2,930,855,758.40 - Step 4: Simplify right side
5,309,717,372.13x = 21,475,583,817,820,454,912 - Step 5: Solve for x
x = 21,475,583,817,820,454,912/5,309,717,372.13 - Step 6: Final answer
x = 4,044,581,342.60
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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.