Finding the Fourth Proportional to 1,011,137,982,937.50, 1,395,474,418,043.30 and 615,203,139,974.09
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Solution
The fourth proportional to 1,011,137,982,937.50, 1,395,474,418,043.30 and 615,203,139,974.09 is: 849,043,610,486.96
Step by Step Solution
- Step 1: Write the proportion equation
1,011,137,982,937.50 : 1,395,474,418,043.30 = 615,203,139,974.09 : x - Step 2: Convert to fraction form
1,011,137,982,937.50/1,395,474,418,043.30 = 615,203,139,974.09/x - Step 3: Cross multiply
1,011,137,982,937.50x = 1,395,474,418,043.30 × 615,203,139,974.09 - Step 4: Simplify right side
1,011,137,982,937.50x = 858,500,243,733,754,025,082,880 - Step 5: Solve for x
x = 858,500,243,733,754,025,082,880/1,011,137,982,937.50 - Step 6: Final answer
x = 849,043,610,486.96
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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.