Finding the Fourth Proportional to 572,557,421.20, 858,836,131.80 and 265,747,565.20
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Solution
The fourth proportional to 572,557,421.20, 858,836,131.80 and 265,747,565.20 is: 398,621,347.80
Step by Step Solution
- Step 1: Write the proportion equation
572,557,421.20 : 858,836,131.80 = 265,747,565.20 : x - Step 2: Convert to fraction form
572,557,421.20/858,836,131.80 = 265,747,565.20/x - Step 3: Cross multiply
572,557,421.20x = 858,836,131.80 × 265,747,565.20 - Step 4: Simplify right side
572,557,421.20x = 228,233,610,931,636,256 - Step 5: Solve for x
x = 228,233,610,931,636,256/572,557,421.20 - Step 6: Final answer
x = 398,621,347.80
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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.