Finding the Fourth Proportional to 2,472,201,019.80, 3,708,301,529.70 and 836,425,621.80
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Solution
The fourth proportional to 2,472,201,019.80, 3,708,301,529.70 and 836,425,621.80 is: 1,254,638,432.70
Step by Step Solution
- Step 1: Write the proportion equation
2,472,201,019.80 : 3,708,301,529.70 = 836,425,621.80 : x - Step 2: Convert to fraction form
2,472,201,019.80/3,708,301,529.70 = 836,425,621.80/x - Step 3: Cross multiply
2,472,201,019.80x = 3,708,301,529.70 × 836,425,621.80 - Step 4: Simplify right side
2,472,201,019.80x = 3,101,718,412,801,213,440 - Step 5: Solve for x
x = 3,101,718,412,801,213,440/2,472,201,019.80 - Step 6: Final answer
x = 1,254,638,432.70
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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.