Finding the Fourth Proportional to 900,338,714.07, 1,242,440,731.86 and 498,470,367.26
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Solution
The fourth proportional to 900,338,714.07, 1,242,440,731.86 and 498,470,367.26 is: 687,874,327.99
Step by Step Solution
- Step 1: Write the proportion equation
900,338,714.07 : 1,242,440,731.86 = 498,470,367.26 : x - Step 2: Convert to fraction form
900,338,714.07/1,242,440,731.86 = 498,470,367.26/x - Step 3: Cross multiply
900,338,714.07x = 1,242,440,731.86 × 498,470,367.26 - Step 4: Simplify right side
900,338,714.07x = 619,319,887,902,825,088 - Step 5: Solve for x
x = 619,319,887,902,825,088/900,338,714.07 - Step 6: Final answer
x = 687,874,327.99
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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.