Finding the Fourth Proportional to 547,283,509.64, 820,925,263.68 and 138,339,660.14
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Solution
The fourth proportional to 547,283,509.64, 820,925,263.68 and 138,339,660.14 is: 207,509,490.01
Step by Step Solution
- Step 1: Write the proportion equation
547,283,509.64 : 820,925,263.68 = 138,339,660.14 : x - Step 2: Convert to fraction form
547,283,509.64/820,925,263.68 = 138,339,660.14/x - Step 3: Cross multiply
547,283,509.64x = 820,925,263.68 × 138,339,660.14 - Step 4: Simplify right side
547,283,509.64x = 113,566,521,977,831,072 - Step 5: Solve for x
x = 113,566,521,977,831,072/547,283,509.64 - Step 6: Final answer
x = 207,509,490.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.