Finding the Fourth Proportional to 704,076,587.20, 1,056,114,880.80 and 643,560,644.80
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Solution
The fourth proportional to 704,076,587.20, 1,056,114,880.80 and 643,560,644.80 is: 965,340,967.20
Step by Step Solution
- Step 1: Write the proportion equation
704,076,587.20 : 1,056,114,880.80 = 643,560,644.80 : x - Step 2: Convert to fraction form
704,076,587.20/1,056,114,880.80 = 643,560,644.80/x - Step 3: Cross multiply
704,076,587.20x = 1,056,114,880.80 × 643,560,644.80 - Step 4: Simplify right side
704,076,587.20x = 679,673,973,670,523,008 - Step 5: Solve for x
x = 679,673,973,670,523,008/704,076,587.20 - Step 6: Final answer
x = 965,340,967.20
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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.