Finding the Fourth Proportional to 883,640,690.24, 1,219,153,931.52 and 512,288,617.28
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Solution
The fourth proportional to 883,640,690.24, 1,219,153,931.52 and 512,288,617.28 is: 706,801,631.85
Step by Step Solution
- Step 1: Write the proportion equation
883,640,690.24 : 1,219,153,931.52 = 512,288,617.28 : x - Step 2: Convert to fraction form
883,640,690.24/1,219,153,931.52 = 512,288,617.28/x - Step 3: Cross multiply
883,640,690.24x = 1,219,153,931.52 × 512,288,617.28 - Step 4: Simplify right side
883,640,690.24x = 624,558,681,829,856,512 - Step 5: Solve for x
x = 624,558,681,829,856,512/883,640,690.24 - Step 6: Final answer
x = 706,801,631.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.