Finding the Fourth Proportional to 7,779,994,353.42, 10,736,395,674.02 and 4,211,701,143.98
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Solution
The fourth proportional to 7,779,994,353.42, 10,736,395,674.02 and 4,211,701,143.98 is: 5,812,149,455.17
Step by Step Solution
- Step 1: Write the proportion equation
7,779,994,353.42 : 10,736,395,674.02 = 4,211,701,143.98 : x - Step 2: Convert to fraction form
7,779,994,353.42/10,736,395,674.02 = 4,211,701,143.98/x - Step 3: Cross multiply
7,779,994,353.42x = 10,736,395,674.02 × 4,211,701,143.98 - Step 4: Simplify right side
7,779,994,353.42x = 45,218,489,942,417,211,392 - Step 5: Solve for x
x = 45,218,489,942,417,211,392/7,779,994,353.42 - Step 6: Final answer
x = 5,812,149,455.17
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1.5x scale
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.