Finding the Fourth Proportional to 1,211,125,697.98, 1,671,354,195.43 and 654,208,991.08
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Solution
The fourth proportional to 1,211,125,697.98, 1,671,354,195.43 and 654,208,991.08 is: 902,808,803.21
Step by Step Solution
- Step 1: Write the proportion equation
1,211,125,697.98 : 1,671,354,195.43 = 654,208,991.08 : x - Step 2: Convert to fraction form
1,211,125,697.98/1,671,354,195.43 = 654,208,991.08/x - Step 3: Cross multiply
1,211,125,697.98x = 1,671,354,195.43 × 654,208,991.08 - Step 4: Simplify right side
1,211,125,697.98x = 1,093,414,941,929,585,536 - Step 5: Solve for x
x = 1,093,414,941,929,585,536/1,211,125,697.98 - Step 6: Final answer
x = 902,808,803.21
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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.