Finding the Fourth Proportional to 788,940,103.20, 1,183,410,154.80 and 358,118,599.20
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Solution
The fourth proportional to 788,940,103.20, 1,183,410,154.80 and 358,118,599.20 is: 537,177,898.80
Step by Step Solution
- Step 1: Write the proportion equation
788,940,103.20 : 1,183,410,154.80 = 358,118,599.20 : x - Step 2: Convert to fraction form
788,940,103.20/1,183,410,154.80 = 358,118,599.20/x - Step 3: Cross multiply
788,940,103.20x = 1,183,410,154.80 × 358,118,599.20 - Step 4: Simplify right side
788,940,103.20x = 423,801,186,916,031,104 - Step 5: Solve for x
x = 423,801,186,916,031,104/788,940,103.20 - Step 6: Final answer
x = 537,177,898.80
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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.