Finding the Fourth Proportional to 790,928,559.74, 1,185,562,351.56 and 266,115,473.23
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Solution
The fourth proportional to 790,928,559.74, 1,185,562,351.56 and 266,115,473.23 is: 398,893,784.20
Step by Step Solution
- Step 1: Write the proportion equation
790,928,559.74 : 1,185,562,351.56 = 266,115,473.23 : x - Step 2: Convert to fraction form
790,928,559.74/1,185,562,351.56 = 266,115,473.23/x - Step 3: Cross multiply
790,928,559.74x = 1,185,562,351.56 × 266,115,473.23 - Step 4: Simplify right side
790,928,559.74x = 315,496,486,223,402,752 - Step 5: Solve for x
x = 315,496,486,223,402,752/790,928,559.74 - Step 6: Final answer
x = 398,893,784.20
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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.