Finding the Fourth Proportional to 885,736,285.20, 1,328,604,427.80 and 303,276,949.20
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Solution
The fourth proportional to 885,736,285.20, 1,328,604,427.80 and 303,276,949.20 is: 454,915,423.80
Step by Step Solution
- Step 1: Write the proportion equation
885,736,285.20 : 1,328,604,427.80 = 303,276,949.20 : x - Step 2: Convert to fraction form
885,736,285.20/1,328,604,427.80 = 303,276,949.20/x - Step 3: Cross multiply
885,736,285.20x = 1,328,604,427.80 × 303,276,949.20 - Step 4: Simplify right side
885,736,285.20x = 402,935,097,556,795,648 - Step 5: Solve for x
x = 402,935,097,556,795,648/885,736,285.20 - Step 6: Final answer
x = 454,915,423.80
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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.