Finding the Fourth Proportional to 4,298,023,240.40, 6,447,034,860.60 and 1,390,272,021.20
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Solution
The fourth proportional to 4,298,023,240.40, 6,447,034,860.60 and 1,390,272,021.20 is: 2,085,408,031.80
Step by Step Solution
- Step 1: Write the proportion equation
4,298,023,240.40 : 6,447,034,860.60 = 1,390,272,021.20 : x - Step 2: Convert to fraction form
4,298,023,240.40/6,447,034,860.60 = 1,390,272,021.20/x - Step 3: Cross multiply
4,298,023,240.40x = 6,447,034,860.60 × 1,390,272,021.20 - Step 4: Simplify right side
4,298,023,240.40x = 8,963,132,186,393,223,168 - Step 5: Solve for x
x = 8,963,132,186,393,223,168/4,298,023,240.40 - Step 6: Final answer
x = 2,085,408,031.80
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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.