Finding the Fourth Proportional to 871,282,430.40, 1,306,923,645.60 and 866,180,596.80
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Solution
The fourth proportional to 871,282,430.40, 1,306,923,645.60 and 866,180,596.80 is: 1,299,270,895.20
Step by Step Solution
- Step 1: Write the proportion equation
871,282,430.40 : 1,306,923,645.60 = 866,180,596.80 : x - Step 2: Convert to fraction form
871,282,430.40/1,306,923,645.60 = 866,180,596.80/x - Step 3: Cross multiply
871,282,430.40x = 1,306,923,645.60 × 866,180,596.80 - Step 4: Simplify right side
871,282,430.40x = 1,132,031,903,317,839,488 - Step 5: Solve for x
x = 1,132,031,903,317,839,488/871,282,430.40 - Step 6: Final answer
x = 1,299,270,895.20
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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.