Finding the Fourth Proportional to 1,005,045,913, 1,507,569,420.30 and 459,404,809.48
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Solution
The fourth proportional to 1,005,045,913, 1,507,569,420.30 and 459,404,809.48 is: 689,107,465.99
Step by Step Solution
- Step 1: Write the proportion equation
1,005,045,913 : 1,507,569,420.30 = 459,404,809.48 : x - Step 2: Convert to fraction form
1,005,045,913/1,507,569,420.30 = 459,404,809.48/x - Step 3: Cross multiply
1,005,045,913x = 1,507,569,420.30 × 459,404,809.48 - Step 4: Simplify right side
1,005,045,913x = 692,584,642,310,795,520 - Step 5: Solve for x
x = 692,584,642,310,795,520/1,005,045,913 - Step 6: Final answer
x = 689,107,465.99
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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.