Finding the Fourth Proportional to 392,787,430.08, 589,159,787.82 and 120,158,197.08
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Solution
The fourth proportional to 392,787,430.08, 589,159,787.82 and 120,158,197.08 is: 180,230,762.18
Step by Step Solution
- Step 1: Write the proportion equation
392,787,430.08 : 589,159,787.82 = 120,158,197.08 : x - Step 2: Convert to fraction form
392,787,430.08/589,159,787.82 = 120,158,197.08/x - Step 3: Cross multiply
392,787,430.08x = 589,159,787.82 × 120,158,197.08 - Step 4: Simplify right side
392,787,430.08x = 70,792,377,896,486,552 - Step 5: Solve for x
x = 70,792,377,896,486,552/392,787,430.08 - Step 6: Final answer
x = 180,230,762.18
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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.