Finding the Fourth Proportional to 1,660,488,902.65, 2,291,485,048.69 and 907,803,699.94
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Solution
The fourth proportional to 1,660,488,902.65, 2,291,485,048.69 and 907,803,699.94 is: 1,252,774,771.47
Step by Step Solution
- Step 1: Write the proportion equation
1,660,488,902.65 : 2,291,485,048.69 = 907,803,699.94 : x - Step 2: Convert to fraction form
1,660,488,902.65/2,291,485,048.69 = 907,803,699.94/x - Step 3: Cross multiply
1,660,488,902.65x = 2,291,485,048.69 × 907,803,699.94 - Step 4: Simplify right side
1,660,488,902.65x = 2,080,218,605,546,515,456 - Step 5: Solve for x
x = 2,080,218,605,546,515,456/1,660,488,902.65 - Step 6: Final answer
x = 1,252,774,771.47
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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.