Finding the Fourth Proportional to 277,243,392.80, 415,865,089.20 and 72,792,135.20
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Solution
The fourth proportional to 277,243,392.80, 415,865,089.20 and 72,792,135.20 is: 109,188,202.80
Step by Step Solution
- Step 1: Write the proportion equation
277,243,392.80 : 415,865,089.20 = 72,792,135.20 : x - Step 2: Convert to fraction form
277,243,392.80/415,865,089.20 = 72,792,135.20/x - Step 3: Cross multiply
277,243,392.80x = 415,865,089.20 × 72,792,135.20 - Step 4: Simplify right side
277,243,392.80x = 30,271,707,798,006,460 - Step 5: Solve for x
x = 30,271,707,798,006,460/277,243,392.80 - Step 6: Final answer
x = 109,188,202.80
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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.