Finding the Fourth Proportional to 431,844,763.20, 647,246,708.06 and 198,353,273.02
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Solution
The fourth proportional to 431,844,763.20, 647,246,708.06 and 198,353,273.02 is: 297,290,864.53
Step by Step Solution
- Step 1: Write the proportion equation
431,844,763.20 : 647,246,708.06 = 198,353,273.02 : x - Step 2: Convert to fraction form
431,844,763.20/647,246,708.06 = 198,353,273.02/x - Step 3: Cross multiply
431,844,763.20x = 647,246,708.06 × 198,353,273.02 - Step 4: Simplify right side
431,844,763.20x = 128,383,502,995,121,408 - Step 5: Solve for x
x = 128,383,502,995,121,408/431,844,763.20 - Step 6: Final answer
x = 297,290,864.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.