Finding the Fourth Proportional to 620,574,779,805.75, 930,862,169,708.65 and 620,574,779,805.75
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Solution
The fourth proportional to 620,574,779,805.75, 930,862,169,708.65 and 620,574,779,805.75 is: 930,862,169,708.65
Step by Step Solution
- Step 1: Write the proportion equation
620,574,779,805.75 : 930,862,169,708.65 = 620,574,779,805.75 : x - Step 2: Convert to fraction form
620,574,779,805.75/930,862,169,708.65 = 620,574,779,805.75/x - Step 3: Cross multiply
620,574,779,805.75x = 930,862,169,708.65 × 620,574,779,805.75 - Step 4: Simplify right side
620,574,779,805.75x = 577,669,585,996,448,173,916,160 - Step 5: Solve for x
x = 577,669,585,996,448,173,916,160/620,574,779,805.75 - Step 6: Final answer
x = 930,862,169,708.65
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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.