Finding the Fourth Proportional to 980,081,201.70, 1,470,121,802.55 and 980,081,201.70
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Solution
The fourth proportional to 980,081,201.70, 1,470,121,802.55 and 980,081,201.70 is: 1,470,121,802.55
Step by Step Solution
- Step 1: Write the proportion equation
980,081,201.70 : 1,470,121,802.55 = 980,081,201.70 : x - Step 2: Convert to fraction form
980,081,201.70/1,470,121,802.55 = 980,081,201.70/x - Step 3: Cross multiply
980,081,201.70x = 1,470,121,802.55 × 980,081,201.70 - Step 4: Simplify right side
980,081,201.70x = 1,440,838,742,888,574,208 - Step 5: Solve for x
x = 1,440,838,742,888,574,208/980,081,201.70 - Step 6: Final answer
x = 1,470,121,802.55
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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.