Finding the Fourth Proportional to 1,358,421,855.04, 1,874,628,508.28 and 771,743,183.68
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Solution
The fourth proportional to 1,358,421,855.04, 1,874,628,508.28 and 771,743,183.68 is: 1,065,009,200.07
Step by Step Solution
- Step 1: Write the proportion equation
1,358,421,855.04 : 1,874,628,508.28 = 771,743,183.68 : x - Step 2: Convert to fraction form
1,358,421,855.04/1,874,628,508.28 = 771,743,183.68/x - Step 3: Cross multiply
1,358,421,855.04x = 1,874,628,508.28 × 771,743,183.68 - Step 4: Simplify right side
1,358,421,855.04x = 1,446,731,773,197,296,384 - Step 5: Solve for x
x = 1,446,731,773,197,296,384/1,358,421,855.04 - Step 6: Final answer
x = 1,065,009,200.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.