Finding the Fourth Proportional to 1,492,992,246.60, 2,239,488,369.90 and 457,844,905.80
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Solution
The fourth proportional to 1,492,992,246.60, 2,239,488,369.90 and 457,844,905.80 is: 686,767,358.70
Step by Step Solution
- Step 1: Write the proportion equation
1,492,992,246.60 : 2,239,488,369.90 = 457,844,905.80 : x - Step 2: Convert to fraction form
1,492,992,246.60/2,239,488,369.90 = 457,844,905.80/x - Step 3: Cross multiply
1,492,992,246.60x = 2,239,488,369.90 × 457,844,905.80 - Step 4: Simplify right side
1,492,992,246.60x = 1,025,338,341,757,061,120 - Step 5: Solve for x
x = 1,025,338,341,757,061,120/1,492,992,246.60 - Step 6: Final answer
x = 686,767,358.70
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1.5x scale
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.