Finding the Fourth Proportional to 1,378,765,201.35, 1,902,693,386.84 and 752,234,053.71
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Solution
The fourth proportional to 1,378,765,201.35, 1,902,693,386.84 and 752,234,053.71 is: 1,038,081,580.49
Step by Step Solution
- Step 1: Write the proportion equation
1,378,765,201.35 : 1,902,693,386.84 = 752,234,053.71 : x - Step 2: Convert to fraction form
1,378,765,201.35/1,902,693,386.84 = 752,234,053.71/x - Step 3: Cross multiply
1,378,765,201.35x = 1,902,693,386.84 × 752,234,053.71 - Step 4: Simplify right side
1,378,765,201.35x = 1,431,270,759,346,101,248 - Step 5: Solve for x
x = 1,431,270,759,346,101,248/1,378,765,201.35 - Step 6: Final answer
x = 1,038,081,580.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.