Finding the Fourth Proportional to 787,321,673.87, 1,086,536,918.18 and 452,794,457.53
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Solution
The fourth proportional to 787,321,673.87, 1,086,536,918.18 and 452,794,457.53 is: 624,875,334.66
Step by Step Solution
- Step 1: Write the proportion equation
787,321,673.87 : 1,086,536,918.18 = 452,794,457.53 : x - Step 2: Convert to fraction form
787,321,673.87/1,086,536,918.18 = 452,794,457.53/x - Step 3: Cross multiply
787,321,673.87x = 1,086,536,918.18 × 452,794,457.53 - Step 4: Simplify right side
787,321,673.87x = 491,977,894,445,934,400 - Step 5: Solve for x
x = 491,977,894,445,934,400/787,321,673.87 - Step 6: Final answer
x = 624,875,334.66
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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.