Finding the Fourth Proportional to 247,239,110.80, 370,858,666.20 and 155,868,000.40
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Solution
The fourth proportional to 247,239,110.80, 370,858,666.20 and 155,868,000.40 is: 233,802,000.60
Step by Step Solution
- Step 1: Write the proportion equation
247,239,110.80 : 370,858,666.20 = 155,868,000.40 : x - Step 2: Convert to fraction form
247,239,110.80/370,858,666.20 = 155,868,000.40/x - Step 3: Cross multiply
247,239,110.80x = 370,858,666.20 × 155,868,000.40 - Step 4: Simplify right side
247,239,110.80x = 57,804,998,731,605,064 - Step 5: Solve for x
x = 57,804,998,731,605,064/247,239,110.80 - Step 6: Final answer
x = 233,802,000.60
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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.