Finding the Fourth Proportional to 46,581,813.40, 69,872,720.10 and 12,506,603.80
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Solution
The fourth proportional to 46,581,813.40, 69,872,720.10 and 12,506,603.80 is: 18,759,905.70
Step by Step Solution
- Step 1: Write the proportion equation
46,581,813.40 : 69,872,720.10 = 12,506,603.80 : x - Step 2: Convert to fraction form
46,581,813.40/69,872,720.10 = 12,506,603.80/x - Step 3: Cross multiply
46,581,813.40x = 69,872,720.10 × 12,506,603.80 - Step 4: Simplify right side
46,581,813.40x = 873,870,426,718,996.38 - Step 5: Solve for x
x = 873,870,426,718,996.38/46,581,813.40 - Step 6: Final answer
x = 18,759,905.70
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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.