Finding the Fourth Proportional to 1,259,729,315.80, 1,889,593,973.70 and 1,132,750,346.20
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Solution
The fourth proportional to 1,259,729,315.80, 1,889,593,973.70 and 1,132,750,346.20 is: 1,699,125,519.30
Step by Step Solution
- Step 1: Write the proportion equation
1,259,729,315.80 : 1,889,593,973.70 = 1,132,750,346.20 : x - Step 2: Convert to fraction form
1,259,729,315.80/1,889,593,973.70 = 1,132,750,346.20/x - Step 3: Cross multiply
1,259,729,315.80x = 1,889,593,973.70 × 1,132,750,346.20 - Step 4: Simplify right side
1,259,729,315.80x = 2,140,438,227,886,108,928 - Step 5: Solve for x
x = 2,140,438,227,886,108,928/1,259,729,315.80 - Step 6: Final answer
x = 1,699,125,519.30
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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.