Finding the Fourth Proportional to 21,402,451.60, 32,103,677.40 and 13,749,701.20
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Solution
The fourth proportional to 21,402,451.60, 32,103,677.40 and 13,749,701.20 is: 20,624,551.80
Step by Step Solution
- Step 1: Write the proportion equation
21,402,451.60 : 32,103,677.40 = 13,749,701.20 : x - Step 2: Convert to fraction form
21,402,451.60/32,103,677.40 = 13,749,701.20/x - Step 3: Cross multiply
21,402,451.60x = 32,103,677.40 × 13,749,701.20 - Step 4: Simplify right side
21,402,451.60x = 441,415,971,671,192.81 - Step 5: Solve for x
x = 441,415,971,671,192.81/21,402,451.60 - Step 6: Final answer
x = 20,624,551.80
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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.