Finding the Fourth Proportional to 1,264,289,411.20, 1,896,434,116.80 and 537,183,644.80
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Solution
The fourth proportional to 1,264,289,411.20, 1,896,434,116.80 and 537,183,644.80 is: 805,775,467.20
Step by Step Solution
- Step 1: Write the proportion equation
1,264,289,411.20 : 1,896,434,116.80 = 537,183,644.80 : x - Step 2: Convert to fraction form
1,264,289,411.20/1,896,434,116.80 = 537,183,644.80/x - Step 3: Cross multiply
1,264,289,411.20x = 1,896,434,116.80 × 537,183,644.80 - Step 4: Simplify right side
1,264,289,411.20x = 1,018,733,390,985,692,800 - Step 5: Solve for x
x = 1,018,733,390,985,692,800/1,264,289,411.20 - Step 6: Final answer
x = 805,775,467.20
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Double scale
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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.