Finding the Fourth Proportional to 489,915,831.60, 734,873,747.40 and 283,291,570.80
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Solution
The fourth proportional to 489,915,831.60, 734,873,747.40 and 283,291,570.80 is: 424,937,356.20
Step by Step Solution
- Step 1: Write the proportion equation
489,915,831.60 : 734,873,747.40 = 283,291,570.80 : x - Step 2: Convert to fraction form
489,915,831.60/734,873,747.40 = 283,291,570.80/x - Step 3: Cross multiply
489,915,831.60x = 734,873,747.40 × 283,291,570.80 - Step 4: Simplify right side
489,915,831.60x = 208,183,538,240,628,416 - Step 5: Solve for x
x = 208,183,538,240,628,416/489,915,831.60 - Step 6: Final answer
x = 424,937,356.20
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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.