Finding the Fourth Proportional to 1,652,638,185.35, 2,479,340,243.12 and 472,234,038.80
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Solution
The fourth proportional to 1,652,638,185.35, 2,479,340,243.12 and 472,234,038.80 is: 708,460,488.78
Step by Step Solution
- Step 1: Write the proportion equation
1,652,638,185.35 : 2,479,340,243.12 = 472,234,038.80 : x - Step 2: Convert to fraction form
1,652,638,185.35/2,479,340,243.12 = 472,234,038.80/x - Step 3: Cross multiply
1,652,638,185.35x = 2,479,340,243.12 × 472,234,038.80 - Step 4: Simplify right side
1,652,638,185.35x = 1,170,828,856,567,931,392 - Step 5: Solve for x
x = 1,170,828,856,567,931,392/1,652,638,185.35 - Step 6: Final answer
x = 708,460,488.78
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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.