Finding the Fourth Proportional to 1,176,122,959.20, 1,764,184,438.80 and 1,118,727,331.20
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Solution
The fourth proportional to 1,176,122,959.20, 1,764,184,438.80 and 1,118,727,331.20 is: 1,678,090,996.80
Step by Step Solution
- Step 1: Write the proportion equation
1,176,122,959.20 : 1,764,184,438.80 = 1,118,727,331.20 : x - Step 2: Convert to fraction form
1,176,122,959.20/1,764,184,438.80 = 1,118,727,331.20/x - Step 3: Cross multiply
1,176,122,959.20x = 1,764,184,438.80 × 1,118,727,331.20 - Step 4: Simplify right side
1,176,122,959.20x = 1,973,641,348,963,293,696 - Step 5: Solve for x
x = 1,973,641,348,963,293,696/1,176,122,959.20 - Step 6: Final answer
x = 1,678,090,996.80
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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.