Finding the Fourth Proportional to 708,588,847.70, 1,062,883,271.55 and 640,564,399.70
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Solution
The fourth proportional to 708,588,847.70, 1,062,883,271.55 and 640,564,399.70 is: 960,846,599.55
Step by Step Solution
- Step 1: Write the proportion equation
708,588,847.70 : 1,062,883,271.55 = 640,564,399.70 : x - Step 2: Convert to fraction form
708,588,847.70/1,062,883,271.55 = 640,564,399.70/x - Step 3: Cross multiply
708,588,847.70x = 1,062,883,271.55 × 640,564,399.70 - Step 4: Simplify right side
708,588,847.70x = 680,845,184,791,597,824 - Step 5: Solve for x
x = 680,845,184,791,597,824/708,588,847.70 - Step 6: Final answer
x = 960,846,599.55
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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.