Finding the Fourth Proportional to 1,770,219,955.89, 2,442,839,549.15 and 977,248,941.99
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Solution
The fourth proportional to 1,770,219,955.89, 2,442,839,549.15 and 977,248,941.99 is: 1,348,568,214.31
Step by Step Solution
- Step 1: Write the proportion equation
1,770,219,955.89 : 2,442,839,549.15 = 977,248,941.99 : x - Step 2: Convert to fraction form
1,770,219,955.89/2,442,839,549.15 = 977,248,941.99/x - Step 3: Cross multiply
1,770,219,955.89x = 2,442,839,549.15 × 977,248,941.99 - Step 4: Simplify right side
1,770,219,955.89x = 2,387,262,364,851,570,688 - Step 5: Solve for x
x = 2,387,262,364,851,570,688/1,770,219,955.89 - Step 6: Final answer
x = 1,348,568,214.31
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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.