Finding the Fourth Proportional to 1,542,244,207.56, 2,128,237,314.28 and 837,380,056.20
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Solution
The fourth proportional to 1,542,244,207.56, 2,128,237,314.28 and 837,380,056.20 is: 1,155,552,066.98
Step by Step Solution
- Step 1: Write the proportion equation
1,542,244,207.56 : 2,128,237,314.28 = 837,380,056.20 : x - Step 2: Convert to fraction form
1,542,244,207.56/2,128,237,314.28 = 837,380,056.20/x - Step 3: Cross multiply
1,542,244,207.56x = 2,128,237,314.28 × 837,380,056.20 - Step 4: Simplify right side
1,542,244,207.56x = 1,782,143,481,838,723,584 - Step 5: Solve for x
x = 1,782,143,481,838,723,584/1,542,244,207.56 - Step 6: Final answer
x = 1,155,552,066.98
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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.