Finding the Fourth Proportional to 1,625,378,962.16, 2,242,984,815.79 and 956,367,339.68
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Solution
The fourth proportional to 1,625,378,962.16, 2,242,984,815.79 and 956,367,339.68 is: 1,319,764,480.25
Step by Step Solution
- Step 1: Write the proportion equation
1,625,378,962.16 : 2,242,984,815.79 = 956,367,339.68 : x - Step 2: Convert to fraction form
1,625,378,962.16/2,242,984,815.79 = 956,367,339.68/x - Step 3: Cross multiply
1,625,378,962.16x = 2,242,984,815.79 × 956,367,339.68 - Step 4: Simplify right side
1,625,378,962.16x = 2,145,117,421,203,720,192 - Step 5: Solve for x
x = 2,145,117,421,203,720,192/1,625,378,962.16 - Step 6: Final answer
x = 1,319,764,480.25
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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.