Finding the Fourth Proportional to 20,960,773,103.99, 31,430,127,251.41 and 14,330,298,438.98
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Solution
The fourth proportional to 20,960,773,103.99, 31,430,127,251.41 and 14,330,298,438.98 is: 21,487,905,109.85
Step by Step Solution
- Step 1: Write the proportion equation
20,960,773,103.99 : 31,430,127,251.41 = 14,330,298,438.98 : x - Step 2: Convert to fraction form
20,960,773,103.99/31,430,127,251.41 = 14,330,298,438.98/x - Step 3: Cross multiply
20,960,773,103.99x = 31,430,127,251.41 × 14,330,298,438.98 - Step 4: Simplify right side
20,960,773,103.99x = 450,403,103,487,594,659,840 - Step 5: Solve for x
x = 450,403,103,487,594,659,840/20,960,773,103.99 - Step 6: Final answer
x = 21,487,905,109.85
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1.5x scale
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.