Finding the Fourth Proportional to 1,158,631,804.80, 1,739,963,246.40 and 614,436,220.80
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Solution
The fourth proportional to 1,158,631,804.80, 1,739,963,246.40 and 614,436,220.80 is: 922,723,195.60
Step by Step Solution
- Step 1: Write the proportion equation
1,158,631,804.80 : 1,739,963,246.40 = 614,436,220.80 : x - Step 2: Convert to fraction form
1,158,631,804.80/1,739,963,246.40 = 614,436,220.80/x - Step 3: Cross multiply
1,158,631,804.80x = 1,739,963,246.40 × 614,436,220.80 - Step 4: Simplify right side
1,158,631,804.80x = 1,069,096,441,448,915,200 - Step 5: Solve for x
x = 1,069,096,441,448,915,200/1,158,631,804.80 - Step 6: Final answer
x = 922,723,195.60
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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.