Finding the Fourth Proportional to 998,908,802.20, 1,498,363,203.30 and 981,690,113.80
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Solution
The fourth proportional to 998,908,802.20, 1,498,363,203.30 and 981,690,113.80 is: 1,472,535,170.70
Step by Step Solution
- Step 1: Write the proportion equation
998,908,802.20 : 1,498,363,203.30 = 981,690,113.80 : x - Step 2: Convert to fraction form
998,908,802.20/1,498,363,203.30 = 981,690,113.80/x - Step 3: Cross multiply
998,908,802.20x = 1,498,363,203.30 × 981,690,113.80 - Step 4: Simplify right side
998,908,802.20x = 1,470,928,343,561,309,440 - Step 5: Solve for x
x = 1,470,928,343,561,309,440/998,908,802.20 - Step 6: Final answer
x = 1,472,535,170.70
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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.