Finding the Fourth Proportional to 748,224,005.18, 1,122,395,844.18 and 256,739,495.18
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Solution
The fourth proportional to 748,224,005.18, 1,122,395,844.18 and 256,739,495.18 is: 385,129,774.55
Step by Step Solution
- Step 1: Write the proportion equation
748,224,005.18 : 1,122,395,844.18 = 256,739,495.18 : x - Step 2: Convert to fraction form
748,224,005.18/1,122,395,844.18 = 256,739,495.18/x - Step 3: Cross multiply
748,224,005.18x = 1,122,395,844.18 × 256,739,495.18 - Step 4: Simplify right side
748,224,005.18x = 288,163,342,426,903,168 - Step 5: Solve for x
x = 288,163,342,426,903,168/748,224,005.18 - Step 6: Final answer
x = 385,129,774.55
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1.5x scale
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.