Finding the Fourth Proportional to 552,548,444.99, 762,519,289.55 and 305,031,833.15
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Solution
The fourth proportional to 552,548,444.99, 762,519,289.55 and 305,031,833.15 is: 420,945,274.23
Step by Step Solution
- Step 1: Write the proportion equation
552,548,444.99 : 762,519,289.55 = 305,031,833.15 : x - Step 2: Convert to fraction form
552,548,444.99/762,519,289.55 = 305,031,833.15/x - Step 3: Cross multiply
552,548,444.99x = 762,519,289.55 × 305,031,833.15 - Step 4: Simplify right side
552,548,444.99x = 232,592,656,698,334,368 - Step 5: Solve for x
x = 232,592,656,698,334,368/552,548,444.99 - Step 6: Final answer
x = 420,945,274.23
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.