Finding the Fourth Proportional to 1,303,380,482.12, 1,798,652,419.98 and 708,664,958.36
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Solution
The fourth proportional to 1,303,380,482.12, 1,798,652,419.98 and 708,664,958.36 is: 977,950,767.09
Step by Step Solution
- Step 1: Write the proportion equation
1,303,380,482.12 : 1,798,652,419.98 = 708,664,958.36 : x - Step 2: Convert to fraction form
1,303,380,482.12/1,798,652,419.98 = 708,664,958.36/x - Step 3: Cross multiply
1,303,380,482.12x = 1,798,652,419.98 × 708,664,958.36 - Step 4: Simplify right side
1,303,380,482.12x = 1,274,641,942,300,246,784 - Step 5: Solve for x
x = 1,274,641,942,300,246,784/1,303,380,482.12 - Step 6: Final answer
x = 977,950,767.09
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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.