Finding the Fourth Proportional to 122,071,645.60, 168,454,984.77 and 69,859,560.26
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Solution
The fourth proportional to 122,071,645.60, 168,454,984.77 and 69,859,560.26 is: 96,403,969.17
Step by Step Solution
- Step 1: Write the proportion equation
122,071,645.60 : 168,454,984.77 = 69,859,560.26 : x - Step 2: Convert to fraction form
122,071,645.60/168,454,984.77 = 69,859,560.26/x - Step 3: Cross multiply
122,071,645.60x = 168,454,984.77 × 69,859,560.26 - Step 4: Simplify right side
122,071,645.60x = 11,768,191,159,110,776 - Step 5: Solve for x
x = 11,768,191,159,110,776/122,071,645.60 - Step 6: Final answer
x = 96,403,969.17
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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.