Finding the Fourth Proportional to 351,883,282.10, 528,076,865.55 and 147,557,995.70
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Solution
The fourth proportional to 351,883,282.10, 528,076,865.55 and 147,557,995.70 is: 221,442,642.55
Step by Step Solution
- Step 1: Write the proportion equation
351,883,282.10 : 528,076,865.55 = 147,557,995.70 : x - Step 2: Convert to fraction form
351,883,282.10/528,076,865.55 = 147,557,995.70/x - Step 3: Cross multiply
351,883,282.10x = 528,076,865.55 × 147,557,995.70 - Step 4: Simplify right side
351,883,282.10x = 77,921,963,856,096,368 - Step 5: Solve for x
x = 77,921,963,856,096,368/351,883,282.10 - Step 6: Final answer
x = 221,442,642.55
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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.