Finding the Fourth Proportional to 1,504,795,137.90, 2,076,495,785.94 and 869,756,767.68
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Solution
The fourth proportional to 1,504,795,137.90, 2,076,495,785.94 and 869,756,767.68 is: 1,200,194,111.07
Step by Step Solution
- Step 1: Write the proportion equation
1,504,795,137.90 : 2,076,495,785.94 = 869,756,767.68 : x - Step 2: Convert to fraction form
1,504,795,137.90/2,076,495,785.94 = 869,756,767.68/x - Step 3: Cross multiply
1,504,795,137.90x = 2,076,495,785.94 × 869,756,767.68 - Step 4: Simplify right side
1,504,795,137.90x = 1,806,046,262,880,315,648 - Step 5: Solve for x
x = 1,806,046,262,880,315,648/1,504,795,137.90 - Step 6: Final answer
x = 1,200,194,111.07
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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.