Finding the Fourth Proportional to 1,889,571,101.80, 2,834,356,652.70 and 1,272,816,106.60
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Solution
The fourth proportional to 1,889,571,101.80, 2,834,356,652.70 and 1,272,816,106.60 is: 1,909,224,159.90
Step by Step Solution
- Step 1: Write the proportion equation
1,889,571,101.80 : 2,834,356,652.70 = 1,272,816,106.60 : x - Step 2: Convert to fraction form
1,889,571,101.80/2,834,356,652.70 = 1,272,816,106.60/x - Step 3: Cross multiply
1,889,571,101.80x = 2,834,356,652.70 × 1,272,816,106.60 - Step 4: Simplify right side
1,889,571,101.80x = 3,607,614,799,405,422,080 - Step 5: Solve for x
x = 3,607,614,799,405,422,080/1,889,571,101.80 - Step 6: Final answer
x = 1,909,224,159.90
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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.