Finding the Fourth Proportional to 966,168,009.20, 1,449,252,013.80 and 239,156,721.20
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Solution
The fourth proportional to 966,168,009.20, 1,449,252,013.80 and 239,156,721.20 is: 358,735,081.80
Step by Step Solution
- Step 1: Write the proportion equation
966,168,009.20 : 1,449,252,013.80 = 239,156,721.20 : x - Step 2: Convert to fraction form
966,168,009.20/1,449,252,013.80 = 239,156,721.20/x - Step 3: Cross multiply
966,168,009.20x = 1,449,252,013.80 × 239,156,721.20 - Step 4: Simplify right side
966,168,009.20x = 346,598,359,812,905,152 - Step 5: Solve for x
x = 346,598,359,812,905,152/966,168,009.20 - Step 6: Final answer
x = 358,735,081.80
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Similar ratio
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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.