Finding the Fourth Proportional to 862,484,963.39, 1,190,313,279.76 and 510,174,456.21
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Solution
The fourth proportional to 862,484,963.39, 1,190,313,279.76 and 510,174,456.21 is: 704,090,454.90
Step by Step Solution
- Step 1: Write the proportion equation
862,484,963.39 : 1,190,313,279.76 = 510,174,456.21 : x - Step 2: Convert to fraction form
862,484,963.39/1,190,313,279.76 = 510,174,456.21/x - Step 3: Cross multiply
862,484,963.39x = 1,190,313,279.76 × 510,174,456.21 - Step 4: Simplify right side
862,484,963.39x = 607,267,430,220,793,472 - Step 5: Solve for x
x = 607,267,430,220,793,472/862,484,963.39 - Step 6: Final answer
x = 704,090,454.90
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1.5x scale
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.