Finding the Fourth Proportional to 1,716,552,803.70, 2,574,829,205.55 and 424,088,291.70
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Solution
The fourth proportional to 1,716,552,803.70, 2,574,829,205.55 and 424,088,291.70 is: 636,132,437.55
Step by Step Solution
- Step 1: Write the proportion equation
1,716,552,803.70 : 2,574,829,205.55 = 424,088,291.70 : x - Step 2: Convert to fraction form
1,716,552,803.70/2,574,829,205.55 = 424,088,291.70/x - Step 3: Cross multiply
1,716,552,803.70x = 2,574,829,205.55 × 424,088,291.70 - Step 4: Simplify right side
1,716,552,803.70x = 1,091,954,919,200,967,680 - Step 5: Solve for x
x = 1,091,954,919,200,967,680/1,716,552,803.70 - Step 6: Final answer
x = 636,132,437.55
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Double scale
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Similar ratio
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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.