Finding the Fourth Proportional to 1,173,311,661.12, 1,758,873,368.96 and 396,414,006.48
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Solution
The fourth proportional to 1,173,311,661.12, 1,758,873,368.96 and 396,414,006.48 is: 594,251,350.42
Step by Step Solution
- Step 1: Write the proportion equation
1,173,311,661.12 : 1,758,873,368.96 = 396,414,006.48 : x - Step 2: Convert to fraction form
1,173,311,661.12/1,758,873,368.96 = 396,414,006.48/x - Step 3: Cross multiply
1,173,311,661.12x = 1,758,873,368.96 × 396,414,006.48 - Step 4: Simplify right side
1,173,311,661.12x = 697,242,039,080,408,960 - Step 5: Solve for x
x = 697,242,039,080,408,960/1,173,311,661.12 - Step 6: Final answer
x = 594,251,350.42
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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.