Finding the Fourth Proportional to 1,197,535,408.80, 1,796,303,113.20 and 679,765,783.20
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Solution
The fourth proportional to 1,197,535,408.80, 1,796,303,113.20 and 679,765,783.20 is: 1,019,648,674.80
Step by Step Solution
- Step 1: Write the proportion equation
1,197,535,408.80 : 1,796,303,113.20 = 679,765,783.20 : x - Step 2: Convert to fraction form
1,197,535,408.80/1,796,303,113.20 = 679,765,783.20/x - Step 3: Cross multiply
1,197,535,408.80x = 1,796,303,113.20 × 679,765,783.20 - Step 4: Simplify right side
1,197,535,408.80x = 1,221,065,392,608,996,352 - Step 5: Solve for x
x = 1,221,065,392,608,996,352/1,197,535,408.80 - Step 6: Final answer
x = 1,019,648,674.80
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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.