Finding the Fourth Proportional to 1,137,924,805.20, 1,706,887,207.80 and 320,037,106.20
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Solution
The fourth proportional to 1,137,924,805.20, 1,706,887,207.80 and 320,037,106.20 is: 480,055,659.30
Step by Step Solution
- Step 1: Write the proportion equation
1,137,924,805.20 : 1,706,887,207.80 = 320,037,106.20 : x - Step 2: Convert to fraction form
1,137,924,805.20/1,706,887,207.80 = 320,037,106.20/x - Step 3: Cross multiply
1,137,924,805.20x = 1,706,887,207.80 × 320,037,106.20 - Step 4: Simplify right side
1,137,924,805.20x = 546,267,242,594,110,016 - Step 5: Solve for x
x = 546,267,242,594,110,016/1,137,924,805.20 - Step 6: Final answer
x = 480,055,659.30
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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.