Finding the Fourth Proportional to 68,352,078.40, 102,528,117.60 and 65,963,291.20
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Solution
The fourth proportional to 68,352,078.40, 102,528,117.60 and 65,963,291.20 is: 98,944,936.80
Step by Step Solution
- Step 1: Write the proportion equation
68,352,078.40 : 102,528,117.60 = 65,963,291.20 : x - Step 2: Convert to fraction form
68,352,078.40/102,528,117.60 = 65,963,291.20/x - Step 3: Cross multiply
68,352,078.40x = 102,528,117.60 × 65,963,291.20 - Step 4: Simplify right side
68,352,078.40x = 6,763,092,077,436,645 - Step 5: Solve for x
x = 6,763,092,077,436,645/68,352,078.40 - Step 6: Final answer
x = 98,944,936.80
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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.