Finding the Fourth Proportional to 473,212,909.80, 709,819,364.70 and 392,591,341.80
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Solution
The fourth proportional to 473,212,909.80, 709,819,364.70 and 392,591,341.80 is: 588,887,012.70
Step by Step Solution
- Step 1: Write the proportion equation
473,212,909.80 : 709,819,364.70 = 392,591,341.80 : x - Step 2: Convert to fraction form
473,212,909.80/709,819,364.70 = 392,591,341.80/x - Step 3: Cross multiply
473,212,909.80x = 709,819,364.70 × 392,591,341.80 - Step 4: Simplify right side
473,212,909.80x = 278,668,936,823,196,576 - Step 5: Solve for x
x = 278,668,936,823,196,576/473,212,909.80 - Step 6: Final answer
x = 588,887,012.70
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1.5x scale
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.