Finding the Fourth Proportional to 1,255,816,131.44, 1,883,896,583.02 and 426,547,145.62
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Solution
The fourth proportional to 1,255,816,131.44, 1,883,896,583.02 and 426,547,145.62 is: 639,879,270.55
Step by Step Solution
- Step 1: Write the proportion equation
1,255,816,131.44 : 1,883,896,583.02 = 426,547,145.62 : x - Step 2: Convert to fraction form
1,255,816,131.44/1,883,896,583.02 = 426,547,145.62/x - Step 3: Cross multiply
1,255,816,131.44x = 1,883,896,583.02 × 426,547,145.62 - Step 4: Simplify right side
1,255,816,131.44x = 803,570,710,130,452,352 - Step 5: Solve for x
x = 803,570,710,130,452,352/1,255,816,131.44 - Step 6: Final answer
x = 639,879,270.55
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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.