Finding the Fourth Proportional to 2,021,325,688.80, 3,031,988,533.20 and 1,429,512,991.20
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Solution
The fourth proportional to 2,021,325,688.80, 3,031,988,533.20 and 1,429,512,991.20 is: 2,144,269,486.80
Step by Step Solution
- Step 1: Write the proportion equation
2,021,325,688.80 : 3,031,988,533.20 = 1,429,512,991.20 : x - Step 2: Convert to fraction form
2,021,325,688.80/3,031,988,533.20 = 1,429,512,991.20/x - Step 3: Cross multiply
2,021,325,688.80x = 3,031,988,533.20 × 1,429,512,991.20 - Step 4: Simplify right side
2,021,325,688.80x = 4,334,266,997,378,832,384 - Step 5: Solve for x
x = 4,334,266,997,378,832,384/2,021,325,688.80 - Step 6: Final answer
x = 2,144,269,486.80
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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.