Finding the Fourth Proportional to 19,319,729.30, 28,979,593.95 and 10,361,777.30
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Solution
The fourth proportional to 19,319,729.30, 28,979,593.95 and 10,361,777.30 is: 15,542,665.95
Step by Step Solution
- Step 1: Write the proportion equation
19,319,729.30 : 28,979,593.95 = 10,361,777.30 : x - Step 2: Convert to fraction form
19,319,729.30/28,979,593.95 = 10,361,777.30/x - Step 3: Cross multiply
19,319,729.30x = 28,979,593.95 × 10,361,777.30 - Step 4: Simplify right side
19,319,729.30x = 300,280,098,754,327.38 - Step 5: Solve for x
x = 300,280,098,754,327.38/19,319,729.30 - Step 6: Final answer
x = 15,542,665.95
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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.