Finding the Fourth Proportional to 868,675,737.60, 1,302,565,708.80 and 323,136,460.80
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Solution
The fourth proportional to 868,675,737.60, 1,302,565,708.80 and 323,136,460.80 is: 484,538,078.92
Step by Step Solution
- Step 1: Write the proportion equation
868,675,737.60 : 1,302,565,708.80 = 323,136,460.80 : x - Step 2: Convert to fraction form
868,675,737.60/1,302,565,708.80 = 323,136,460.80/x - Step 3: Cross multiply
868,675,737.60x = 1,302,565,708.80 × 323,136,460.80 - Step 4: Simplify right side
868,675,737.60x = 420,906,473,101,075,392 - Step 5: Solve for x
x = 420,906,473,101,075,392/868,675,737.60 - Step 6: Final answer
x = 484,538,078.92
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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.