Finding the Fourth Proportional to 1,114,875,528.40, 1,672,205,232.84 and 338,528,013.52
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Solution
The fourth proportional to 1,114,875,528.40, 1,672,205,232.84 and 338,528,013.52 is: 507,759,208.32
Step by Step Solution
- Step 1: Write the proportion equation
1,114,875,528.40 : 1,672,205,232.84 = 338,528,013.52 : x - Step 2: Convert to fraction form
1,114,875,528.40/1,672,205,232.84 = 338,528,013.52/x - Step 3: Cross multiply
1,114,875,528.40x = 1,672,205,232.84 × 338,528,013.52 - Step 4: Simplify right side
1,114,875,528.40x = 566,088,315,671,074,176 - Step 5: Solve for x
x = 566,088,315,671,074,176/1,114,875,528.40 - Step 6: Final answer
x = 507,759,208.32
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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.