Finding the Fourth Proportional to 993,831,495.60, 1,490,733,246.60 and 448,572,154.80
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Solution
The fourth proportional to 993,831,495.60, 1,490,733,246.60 and 448,572,154.80 is: 672,851,914.66
Step by Step Solution
- Step 1: Write the proportion equation
993,831,495.60 : 1,490,733,246.60 = 448,572,154.80 : x - Step 2: Convert to fraction form
993,831,495.60/1,490,733,246.60 = 448,572,154.80/x - Step 3: Cross multiply
993,831,495.60x = 1,490,733,246.60 × 448,572,154.80 - Step 4: Simplify right side
993,831,495.60x = 668,701,424,659,361,792 - Step 5: Solve for x
x = 668,701,424,659,361,792/993,831,495.60 - Step 6: Final answer
x = 672,851,914.66
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Double scale
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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.