Finding the Fourth Proportional to 452,860,909.80, 679,291,364.70 and 398,335,063.20
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Solution
The fourth proportional to 452,860,909.80, 679,291,364.70 and 398,335,063.20 is: 597,502,594.80
Step by Step Solution
- Step 1: Write the proportion equation
452,860,909.80 : 679,291,364.70 = 398,335,063.20 : x - Step 2: Convert to fraction form
452,860,909.80/679,291,364.70 = 398,335,063.20/x - Step 3: Cross multiply
452,860,909.80x = 679,291,364.70 × 398,335,063.20 - Step 4: Simplify right side
452,860,909.80x = 270,585,568,688,988,768 - Step 5: Solve for x
x = 270,585,568,688,988,768/452,860,909.80 - Step 6: Final answer
x = 597,502,594.80
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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.