Finding the Fourth Proportional to 477,931,201.20, 716,896,801.80 and 477,931,201.20
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Solution
The fourth proportional to 477,931,201.20, 716,896,801.80 and 477,931,201.20 is: 716,896,801.80
Step by Step Solution
- Step 1: Write the proportion equation
477,931,201.20 : 716,896,801.80 = 477,931,201.20 : x - Step 2: Convert to fraction form
477,931,201.20/716,896,801.80 = 477,931,201.20/x - Step 3: Cross multiply
477,931,201.20x = 716,896,801.80 × 477,931,201.20 - Step 4: Simplify right side
477,931,201.20x = 342,627,349,620,712,320 - Step 5: Solve for x
x = 342,627,349,620,712,320/477,931,201.20 - Step 6: Final answer
x = 716,896,801.80
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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.