Finding the Fourth Proportional to 3,320,031,924.80, 4,980,047,887.20 and 866,368,827.80
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Solution
The fourth proportional to 3,320,031,924.80, 4,980,047,887.20 and 866,368,827.80 is: 1,299,553,241.70
Step by Step Solution
- Step 1: Write the proportion equation
3,320,031,924.80 : 4,980,047,887.20 = 866,368,827.80 : x - Step 2: Convert to fraction form
3,320,031,924.80/4,980,047,887.20 = 866,368,827.80/x - Step 3: Cross multiply
3,320,031,924.80x = 4,980,047,887.20 × 866,368,827.80 - Step 4: Simplify right side
3,320,031,924.80x = 4,314,558,250,421,330,432 - Step 5: Solve for x
x = 4,314,558,250,421,330,432/3,320,031,924.80 - Step 6: Final answer
x = 1,299,553,241.70
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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.