Finding the Fourth Proportional to 511,297,497.60, 766,946,246.40 and 426,266,937.60
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Solution
The fourth proportional to 511,297,497.60, 766,946,246.40 and 426,266,937.60 is: 639,400,406.40
Step by Step Solution
- Step 1: Write the proportion equation
511,297,497.60 : 766,946,246.40 = 426,266,937.60 : x - Step 2: Convert to fraction form
511,297,497.60/766,946,246.40 = 426,266,937.60/x - Step 3: Cross multiply
511,297,497.60x = 766,946,246.40 × 426,266,937.60 - Step 4: Simplify right side
511,297,497.60x = 326,923,827,756,743,040 - Step 5: Solve for x
x = 326,923,827,756,743,040/511,297,497.60 - Step 6: Final answer
x = 639,400,406.40
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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.