Finding the Fourth Proportional to 809,679,062.15, 1,214,966,747.40 and 395,159,317.09
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Solution
The fourth proportional to 809,679,062.15, 1,214,966,747.40 and 395,159,317.09 is: 592,957,694.76
Step by Step Solution
- Step 1: Write the proportion equation
809,679,062.15 : 1,214,966,747.40 = 395,159,317.09 : x - Step 2: Convert to fraction form
809,679,062.15/1,214,966,747.40 = 395,159,317.09/x - Step 3: Cross multiply
809,679,062.15x = 1,214,966,747.40 × 395,159,317.09 - Step 4: Simplify right side
809,679,062.15x = 480,105,430,185,143,040 - Step 5: Solve for x
x = 480,105,430,185,143,040/809,679,062.15 - Step 6: Final answer
x = 592,957,694.76
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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.