Finding the Fourth Proportional to 823,658,197.41, 1,136,644,430.76 and 447,312,151.53
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Solution
The fourth proportional to 823,658,197.41, 1,136,644,430.76 and 447,312,151.53 is: 617,288,661.06
Step by Step Solution
- Step 1: Write the proportion equation
823,658,197.41 : 1,136,644,430.76 = 447,312,151.53 : x - Step 2: Convert to fraction form
823,658,197.41/1,136,644,430.76 = 447,312,151.53/x - Step 3: Cross multiply
823,658,197.41x = 1,136,644,430.76 × 447,312,151.53 - Step 4: Simplify right side
823,658,197.41x = 508,434,865,847,847,680 - Step 5: Solve for x
x = 508,434,865,847,847,680/823,658,197.41 - Step 6: Final answer
x = 617,288,661.06
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1.5x scale
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.