Finding the Fourth Proportional to 1,173,311,642.12, 1,758,873,340.50 and 396,413,987.48
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Solution
The fourth proportional to 1,173,311,642.12, 1,758,873,340.50 and 396,413,987.48 is: 594,251,321.94
Step by Step Solution
- Step 1: Write the proportion equation
1,173,311,642.12 : 1,758,873,340.50 = 396,413,987.48 : x - Step 2: Convert to fraction form
1,173,311,642.12/1,758,873,340.50 = 396,413,987.48/x - Step 3: Cross multiply
1,173,311,642.12x = 1,758,873,340.50 × 396,413,987.48 - Step 4: Simplify right side
1,173,311,642.12x = 697,241,994,379,872,768 - Step 5: Solve for x
x = 697,241,994,379,872,768/1,173,311,642.12 - Step 6: Final answer
x = 594,251,321.94
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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.